The Rockwell Family Papers consist of two cartons of letters, business papers, bound diaries and account books, photographs, newspaper clippings, and other papers. The chronological span of the collection is from 1854 to 1972, with the great majority of the papers dating from the 1850s to 1929. Most of the materials in the Rockwell Family Papers relate to Ell B. Rockwell's many years of service on Lake Champlain steamboats.