James Madison Marvin (February 27, 1809 – April 25, 1901) was a businessman and U.S. Representative from New York during the latter half of the American Civil War.

The couple had five children: a son, William, who died at age nine in 1855, and four daughters, Mary, Frances, Caroline, and Rhobie, who were still living as of 1878[1] He engaged in the hotel business in Saratoga Springs and Albany, New York.

In 1852, Northup had a letter sent by Samuel Bass explaining his circumstances and the need to have proof of his freedom to be freed.

He served as chairman of the Committee on Expenditures in the Department of the Treasury (Thirty-ninth and Fortieth Congresses).

This article incorporates public domain material from the Biographical Directory of the United States Congress