John Oliver Ernst (December 4, 1899 – March 9, 1968) was an

American football American football (referred to simply as football in the United States and Canada), also known as gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, the team wi ...

running back A running back (RB) is a member of the offensive backfield in gridiron football. The primary roles of a running back are to receive handoffs from the quarterback to rush the ball, to line up as a receiver to catch the ball, and block. Ther ...

. He played six seasons for the

Pottsville Maroons The Pottsville Maroons were an American football team based in Pottsville, Pennsylvania, in the northeastern part of the state. Founded in 1920, they played in the National Football League (NFL) from 1925 to 1928. In 1929 they relocated to Bosto ...

New York Yankees The New York Yankees are an American professional baseball team based in the New York City borough of the Bronx. The Yankees compete in Major League Baseball (MLB) as a member club of the American League (AL) East division. They are one of ...

, Boston Bulldogs, and

Frankford Yellow Jackets The Frankford Yellow Jackets were a professional American football team, part of the National Football League from 1924 to 1931, although its origin dates back to as early as 1899 with the Frankford Athletic Association. The Yellow Jackets won ...

. In 1925 Jack helped the Maroons win the NFL Championship, before it was stripped from the team due to a disputed rules violation.

References

Jack Ernst's profile at NFL.com
1899 births 1968 deaths American football running backs Players of American football from Pennsylvania Boston Bulldogs (NFL) players Lafayette Leopards football players Pottsville Maroons players New York Yankees (NFL) players Frankford Yellow Jackets players {{runningback-1890s-stub