Attorney in Trenton, N.J., Governor of New Jersey, 1839-1841, United States Minister to Prussia, 1855-1857.

Correspondence and papers of Vroom, consisting chiefly of letters received by Vroom from a variety of individuals including J.H. Austin, Andrew Deutcher, Alfred Gale, P.B. Kennedy, James Parker, and John M. Wycoff. These letters deal with business, legal, and political affairs. There are a few personal letters, various legal papers and documents, and memoranda written by Vroom. The early material contains Vroom family letters and documents including letters to Vroom's father, Peter D. Vroom (1745-1831). Also of interest is Vroom's Latin-English vocabulary notebook kept during his junior year at Columbia College, 1807. The notebook contains a list of his classmates. In addition there is his 1808 Columbia College Commencement address.