Correspondence, reports, studies, resumes, bills, and 68 sets of specifications, for ferryboats, tugs, passenger and cargo vessels, barges, lighters, and sectional street drydock.

Correspondence, contracts, accounts, legal documents, specifications, and other papers, relating to Lupton's claims against the U.S. Navy Dept. for cost overruns during the building of the gunboat LENAPEE during the Civil War. The claims were later continued by his estate.