This collection consists of additions to the William Henry Seward papers after the main collection was microfilmed in 1981.

Family papers and correspondence to and from the William Perkins Cross family members and friends, chiefly personal in nature. Included is some information about the Daniel E. Cross Company Boot & Shoe Patterns, Rochester, N.Y. Also in the collection are family and business financial papers, bills, statements, wills, diaries, account books, notebooks.