Although they often faced obstacles and policy limitations, beginning in the early 1900s a few women were able to participate in the pioneering development of radio communication.

Women as wireless operators

Beginning in the late 1840s, women were employed as landline telegraph operators, sending and receiving Morse code messages. Early radio communication, then called "wireless telegraphy", was developed in the late 1800s, and also initially communicated using Morse code. Women were employed as some of the earliest wireless operators, and in early 1901 the announcement of the inauguration of a Hawaiian inter-island overland system noted that four of the fourteen operators were women. In 1906, Anna Nevins, who had been a landline telegrapher for Western Union, began work as a wireless operator for Lee de Forest's station "NY", located at 42 Broadway in New York City. She was later employed at the United Wireless Waldorf-Astoria Hotel station in New York City. Nevis left the profession after she married "NY" station manager H. J. Hughes in July 1910."Girl Marine Radio Operators"
''SOS To The Rescue'' by Karl Baarslag, 1935, pages 249-257 (as reprinted in ''Sparks Journal Quarterly'', Vol. 4, No. 1 (November 30, 1981), page 6.)

Early female shipboard operators

One of the earliest applications of wireless telegraphy was communication between ships and land stations. While early ship operators were almost exclusively male, a few women entered the field as well. The primary requirements were a knowledge of telegraphic code, which many female landline telegraph operators already possessed, and equipment operation and repair, which generally required additional training. In the United States, prior to 1910 there was no government regulation of radio communication. The passage of the Wireless Ship Act of 1910 required many U.S. ships to be equipped with radio equipment for the first time. It also required certified operators on board, capable of sending and receiving messages. With the passage of the Radio Act of 1912, the certification program was replaced by operator licenses.

Medora Olive Newell

Perhaps the earliest woman to operate on shipboard was Medora Olive Newell, an experienced landline telegrapher who began working as an operator in Durango, Iowa in 1886 at the age of fourteen, and in 1897 moved to Chicago and became a commercial operator for the Postal Telegraph Company. Newell's pay as a first-class landline operator enabled her to live a fairly affluent lifestyle; as ''Telegraph Age'' reported in 1909, "Miss Newell has been in the habit of spending her vacations abroad, and has always made these trips the occasion for investigating telegraph and railway management and operation in European countries." In 1904, she was a passenger aboard the Cunard liner ''Slavonia'' on a return voyage from Europe, together with members of The Hague Peace Commission, who were on their way to the United States to persuade President Theodore Roosevelt to call another international conference to continue the work begun at The Hague in 1899. The Hungarian members of the delegation wished to send a birthday greeting back to Emperor Franz Josef of Austria-Hungary, but the ship's operator was unable to send the message. Newell, who, according to ''Telegraph Age'', "had a good working knowledge of wireless", took her place at the key and soon had successfully transmitted the message. The grateful delegates thanked her for her assistance, and the secretary of the Hungarian parliament invited her to visit Hungary as the guest of the nation.

Annie Tucker

The first woman known to have worked professionally as a maritime radio operator was Annie Tucker, beginning in October 1908 aboard the ''Indianapolis'',"Woman Runs Wireless"
''(Portland) Morning Oregonian'', April 16, 1909, page 11. which made four trips daily on Puget Sound between Tacoma and Seattle, Washington."Woman Wireless Operator"
''Los Angeles Herald Sunday Magazine'', March 21, 1909, page 13. Tucker originally worked at Western Union offices in Portland, Oregon and Seattle, Washington, initially as a bookkeeper, where she learned to send and receive Morse code. Eventually she and her husband, Robert H. Tucker, trained themselves in radiotelegraphy. The couple relocated to Tacoma, Washington, where Robert Tucker became the manager of the local United Wireless Telegraph Company station. Annie Tucker was given the ''Indianapolis'' assignment after working at a series of land stations along the Pacific coast. In early 1909, she was quoted as saying that, as the ship's sole operator, her workday was from 6 a.m. to 11 p.m., and instead of returning to her Tacoma home she often bunked overnight on the ''Indianapolis''. However, her maritime work ended in April 1909, when she was reassigned to the United Wireless land station at Council Crest, Oregon.

Graynella Packer

The first woman known to have worked on a vessel on the open ocean, and on overnight voyages, was Graynella Parker (also known as "A. Graynella Packer"). She was born around 1888 in Philadelphia, Philadelphia, Pennsylvania, and in her teens her family moved to Jacksonville, Florida. While attending Sutherland College there, she took technical courses and learned Morse code as a way to communicate with classmates."First Girl to Flash Wireless Dots from Coastwise Liner"
''New York Evening Telegram'', November 29, 1910, page 3. After Packer finished college studies, she decided to go into landline telegraphy, and was employed for two years as the manager of the Sanford, Florida office of the Postal Telegraph Company. During voyages to New York City she became interested in the ship's radiotelegraph equipment, and made arrangements with United Wireless to be trained for a shipboard position."Woman to Guide Ship's Wireless"
''Washington (D.C.) Herald'', November 30, 1910, page 3. On November 29, 1910, the ''Mohawk'' set off from New York City with Packer on board for the first time, on a regular run to Charleston, South Carolina and Jacksonville. Many of the early press accounts stated that she was 22 years old, however she later was quoted as saying "I don't know how the reporters ever came to say I was 22 years of age and I don't think I will tell you exactly how old I am.""Woman Handles Wireless"
''(Newberry, South Carolina) Herald and News'', December 6, 1910, page 9. Although initially accepted by the company's male operators, she eventually met with conflicts, in part out of concern that, as had happened in landline telegraphy, use of female operators would lead to job losses and lower wages. Therefore, she left in April 1911. In 1918 Packer published an instruction manual titled "Rhythmic Telegraphy". She later received a law degree, and in 1933 was admitted to practice before the U.S. Supreme court.

Mabelle Kelso

Mabelle (also spelled "Mabel") Kelso, was born on October 10, 1883, in Pennsylvania, and got her start as a stenographer for a Washington lumber company. In 1908, she began studying Morse code at Pittsburgh Technical College, and after graduation was hired by Western Union and the Postal Telegraph Company as a landline telegrapher."The Pioneer Wireless Women"
by Louisa B. Sando, ''CQ'', June 1956, pages 48-53 (as reprinted in ''Sparks Journal Quarterly'', Vol. 4, No. 1 (November 30, 1981), pages 1, 4-5) In early 1912, she began training, under the supervision of R. H. Armstrong, manager of the Seattle office of the United Wireless Telegraph Company, to become a maritime radio operator. On June 6, 1912, she was the first woman issued a "Certificate of Skill in Radiocommunication" under the provisions of the Wireless Ship Act of 1910, qualifying her to work as a maritime operator. Kelso was hired by United Wireless, and effective July 1 assigned to the SS Mariposa (1883), S.S. Mariposa, a steamship which traveled between ports at Seattle and in Alaska."Steamer Carries Girl as Wireless Operator"
''San Francisco Call'', September 27, 1912, page 10. Her appointment generated some opposition from members of Congress who wished to bar women from holding such positions on seagoing ships; however, she received support from the Pacific Coast Wireless Inspector of United Wireless, who stated that "he knew of no law which would bar Miss Kelso from her position". In 1912 United Wireless went bankrupt, and its assets were taken over by the Marconi Wireless Telegraph Company of America. R. H. Sawler, the new head of the Seattle office, soon discharged Kelso from shipboard duties, stating that "it was against the policy of the company to employ women operators". She was transferred to a shore station where she performed menial clerical duties, including keeping the books and transmitting from the shore station to the downtown office over a "buzzer" telegraph line. She quit to pursue a higher paid stenographers job. Under her married name of Mabelle Kelso Shaw, she became a Doctor of Chiropractic beginning in 1924.

Mrs. Horace E. Soule

In May 1912, Pacific American Fisheries purchased the ''Windber'', then located in Philadelphia, primarily to be used by the company's Alaska canneries.''Pacific American Fisheries, Inc.'' by August C. Radke, 2002, pages 82-83. Because it was planned to also carry passengers, the ship had to be fitted with a radio transmitter in order to meet U.S. government regulations. Captain Horace E. Soule's wife normally traveled aboard the ship, so she completed American Marconi's three month wireless school program and received a first-class operator's license."Wife is Captain Soule's Operator"
''The Marconigraph'', July 1913, page 445. The ''Windber'' left New York City on August 2, 1912, arriving 84 days later in San Francisco. During this journey Mrs. Soule acted as the ship's purser and wireless operator, although the radio equipment, installed in New York, failed while along the Atlantic coast of South America. In San Francisco the ship was put into drydock for refitting, and in late January 1913 arrived at company headquarters in Bellingham, Washington to begin the Bellingham/Alaska runs. Thus, Mrs. Soule became the first woman to act as a maritime radio operator on both the Atlantic and the Pacific oceans.

Edith Coombs

Edith Coombs began working aboard the North Pacific liner ''Roanoke'', based in San Francisco, on September 17, 1912, just after turning 18 years old. The ship's routes were along the eastern Pacific coast, from San Francisco to Portland and Astoria, Oregon. Coombs had initially worked in the U.S government's Radio Inspection office in San Francisco as a stenographer, and had been personally trained by the local Radio Inspector, R. Y. Cadmus. However, in early 1913 she was removed from maritime duties and reposted to a land station. (In 1918, a reference in the ''Marconi Service News'' identified the pioneer ''Roanoke'' operator as "Mrs. Sickles".)"The First Woman Radio Operator Sent to Sea"
''Marconi Service News'', May 1918, page 14.

Later developments

There was a brief period where it appeared that opportunities were expanding for women to work as maritime radio operators, including a 1911 report that "As a result of the daily service of the Clyde line and the need of additional operators it is expected that several other women will be employed in the near future." However, one young woman, inspired by Graynella Packer, found that, despite meeting all the requirements for a similar posting, many obstacles remained, and concluded that "lady radio operators were no longer fashionable"."The Autobiography of a Girl Amateur"
by "Anonymous", ''Radio Amateur News'', March 1920, pages 490, 513. Although never identified, the author mentions operating an amateur station with a call sign starting with "2", indicating a location within the second Radio Inspection District, which was New York City and adjoining jurisdictions. There had been a long naval tradition that, in cases of emergency, women had priority in evacuating distressed ships, while others suggested that women didn't have the temperament needed to effectively respond to an emergency. When this was brought up, however, the female operators forcefully insisted that they would be fully professional and reliable during any crisis. In July 1912, addressing a proposed federal radio law, the New York branch of the Commercial Telegraphers' Union of America complained that the legislation "failed to bar against the employment of women as wireless telegraphers". In addition, an American Marconi official was quoted as saying that there were conditions under which work as a wireless telegrapher might be undesirable occupation for a woman. In early 1913, U.S. Radio Inspector R. B. Wolverton declared that "women wireless operators will not be acceptable at sea", despite the fact that more than thirty women had passed the examinations needed to qualify. A 1918 review in the ''Marconi Service News'' was not aware of any subsequent female maritime radio operators until December 1917, when Elizabeth Langsdale Du Val was assigned as the junior operator on the ''Howard'', sailing along the Atlantic coast. However, in his 1935 book ''SOS To The Rescue'', Karl Baarslag reported that in 1913 Margaret King had briefly served as an operator on the ''Eastland'' on the U.S. Great Lakes.

Women as radio amateurs

Amateur radio became a popular hobby in the early years of the twentieth century, and many hobbyists built their own transmitting and receiving equipment. Informally known collectively as "hams", use of the term "YL" ("young lady") to refer to individual female amateur operators, in contrast to "OM" ("old man") for males, was adopted by the American Radio Relay League in 1920. Some of the earliest women radio enthusiasts were Mrs. M. J. Glass of San Jose, California, who participated in the operation of station Charles Herrold#Radio development pre-WWI, FNFN in 1910, and Olive Heartberg, who operated amateur station OHK in New York City in the same year. M. S. Colville, of Bowmanville, Ontario, who began to operate as XDD in 1914, was one of the earliest Canadian female operators. Because all early radio work was done in Morse code, and individual operators were commonly identified by short call signs, it was possible to remain anonymous if desired. Even after the Radio Act of 1912 required United States radio stations to be licensed, in some cases transmitters were registered under a brother's name, in order to disguise the fact that the main operator was female. Gladys Kathleen Parkin (September 27, 1901 - August 3, 1990) was one of the early women to obtain a government issued license. In 1916, while a fifteen-year-old high school student at the Dominican College in San Rafael, California, she constructed her own amateur station, 6SO. and obtained a first class commercial radio operators' license. Parkin was quoted in 1916 as saying: "With reference to my ideas about the wireless profession as a vocation or worthwhile hobby for women, I think wireless telegraphy is a most fascinating study, and one which could very easily be taken up by girls, as it is a great deal more interesting than the telephone and telegraph work, in which so many girls are now employed. I am only fifteen, and I learned the code several years ago, by practising a few minutes each day on a buzzer. I studied a good deal and I found it quite easy to obtain my first grade commercial government license, last April. It seems to me that every one should at least know the code, as cases might easily arise of a ship in distress, where the operators might be incapacitated, and a knowledge of the code might be the means of saving the ship and the lives of the passengers. But the interest in wireless does not end in the knowledge of the code. You can gradually learn to make all your own instruments, as I have done with my 1/4 kilowatt set. There is always more ahead of you, as wireless telegraphy is still in its infancy."

World War I and women as radio operators

As the U.S. prepared to enter World War I, the Navy Department began a program to train women as radio operators who could be called into action in the event of war. The Girls' Division of the United States Junior Naval Reserve established training camps at the Martha Washington Post, in Edgewater, New Jersey, and the Betsy Ross Post, at Bay Ridge, Brooklyn, where young women were trained to become wireless operators. In January 1917, in the United States the National League for Women's Service (NLWS) was created from the Woman's Department of the National Civic Federation readiness and relief activities and modelled on similar groups in Britain and elsewhere. The League was divided into thirteen national divisions, one of which was "Wireless and Telegraphy". When the US entered the war in April 1917, the NLWS established training program for female wireless operators at Hunter College in New York. Although they were not strictly government employees, these female wireless operators were allowed to transmit in order to help the war effort. Abby Putman Morrison, from Hunter College's wireless class, became the first woman to work for the U.S. Navy as an electrician, when she was admitted as an Electrician, 1st Class.

Women as broadcast radio engineers

By 1920, the technology had evolved to the point where voice and music could be transmitted as well as Morse telegraphy, and several radio stations began to broadcast regular programs of music and news. In 1920, Eunice Randall (1898-1982), an employee of The American Radio and Research Company, or AMRAD, became an engineer and announcer for the AMRAD radio station, WGI (radio station)#Experimental station 1XE, 1XE. Her interest in radio had begun at the age of nineteen, when she built her own amateur radio equipment and operated with the call sign 1CDP. In addition to her technical duties at 1XE, which included repairing equipment and occasionally climbing the transmitting tower, she read stories for children as "The Story Lady," and gave the police report over the air. In 1922, the AMRAD station received a broadcasting station license with the call sign WGI (radio station), WGI. Randall remained as engineer and assistant chief announcer until 1925, when the company went bankrupt and the station was taken off the air. However, she continued to work as an engineer and drafter, and resumed her amateur radio activities under the call sign of W1MPP. Florence Violet McKenzie, Florence Violet Mackenzie OBE (1890–1982), Australia's first female electrical engineer, founded the Women's Emergency Signalling Corps (WESC) and trained thousands of service personnel in her Sydney signal instruction school. She later corresponded with Albert Einstein.