Augusta R. Thurlow was born around 1840 in Massachusetts. Her family probably lived in Methuen, Massachusetts, and she eventually moved to Washington, D.C. She supported the Republican Party. In the mid-1860s, she began working as a clerk at the United States Post Office. She worked in the dead letter office, and a local writer noted that her “clerical work is so faithfully and skillfully executed that nobody else could do it as well.” She supported the women’s suffrage movement, and she reportedly “rather glories in her woman’s rights ideas.” She never married. She died of phthisis pulmonalis in Washington, D.C., on July 3, 1906.