He was a son of Joseph Dudley Selden (1764–1837) and Ethelinda Colt (1771–1864). He married Mary Augusta Packard (1803–1868), and had a daughter Maria Louisa Selden who married William Rogers Morgan.
He was a member of the New York State Assembly in 1831.
- United States Congress. "Dudley Selden (id: S000233)". Biographical Directory of the United States Congress.
- Selden Ancestry: A Family History, by Seophie Selden Rogers, Elizabeth Selden Lane, and Edwin Van Deusen Selden. Published Oil City, PA by E. Van D Selden.
- Samuel Colt: Arms, Art, and Invention by Herbert G. Houze, Carolyn C. Cooper, Elizabeth Mankin Kornhauser (Yale University Press, 2006, ISBN 0-300-11133-9, ISBN 978-0-300-11133-0 ; page 246) [gives birthyear 1794, but shows Joseph Dudley Selden in a place which suggests his marriage to another Ethelinda of the next generation]