John Gage Marvin (1815–1855) was an American lawyer, legal bibliographer and figure in the history of California.
[3] In 1842, Marvin enrolled at Harvard Law School from an address given in Towanda, Pennsylvania,[4] and was there for four years, studying under Simon Greenleaf, Joseph Story and Charles Sumner.
[5] Marvin was the last beneficiary (1843–5) of a system of student librarians, set up in 1830, who had a rent-free room in Dane Hall and received payment for their services to the Harvard Law Library.
[9] There was a legislative vacuum, which he proceeded to fill through the state legislature in stop-gap fashion, having consulted John C. Pelton who had recently set up a school in San Francisco.
[12] At the 1853 state Democratic convention, Paul K. Hubbs was nominated for Superintendent of Public Instruction ahead of Marvin.