History
A post office called T.B. was established in 1860, and remained in operation until 1914. Some say the community has the name of Thomas Brooke, an early settler, while others believe partners William Townshend and Mr. Brooke each etched his respective last initial into stone at the original town site. TB has been noted for its Unusual place name, unusually List of short place names, short place name.References
Unincorporated communities in Prince George's County, Maryland Unincorporated communities in Maryland {{PrinceGeorgesCountyMD-geo-stub