In the nineteenth and early twentieth centuries, the area contained a few houses and small farms lining the Washington–Brookeville Turnpike, as Georgia Avenue was then called. The Hardy family farm was located between current-day Randolph Road and Parker Avenue and stayed in the family for generations. In 1898, Mary Hardy gave the name Glenmont to the area's post office at what is now Georgia Avenue and Randolph Road. Annie Lofler was appointed the new postmaster of Glenmont in 1900. Although the post office was closed in 1901, the name for the area stuck, albeit occasionally misspelled as "Glenmount".