Julia Keese Nelson Colles (1840–1913) was an American historian, lecturer, and writer who lived in and studied Morristown, New Jersey.

[1] Colles also helped found the women's branch of the New Jersey Historical Society, and served as the chair of social science at Rutgers Female College in New York City.

She gave in-depth lectures focused on the lives of famous literary figures, including Shakespeare, Spenser, Coleridge, Byron, Milton, Goethe, and Chaucer.

[8] Originally located in the Morristown Green, the building was George Washington's winter headquarters from January to May 1777 and the place of Benedict Arnold's first trial in 1780.

[10] In an unknown year, Colles renovated the Tavern into the "Colonial House," which was "a residence for summer boarders who came to Morristown as a vacation area.