Consists mainly of correspondence from various business partners to Walter Cass Newberry. There are also materials, including a business advertising card, related to Walter Cass Newberry’s hops and barley business, the inventory of Fanny L. Edgerton’s estate, of which W.C. Newberry was executor, and a certificate from 1897 naming W.C. Newberry as a trustee of the Soldiers’ Widows’ Home, signed by John R. Tanner, the Governor of Illinois at the time. Also in the collection are W.C. Newberry’s cash book, four letter-press books containing information about W.C. Newberry’s finances and business ventures, and Fanny L. Edgerton’s Last Will and Testament. Correspondents include Henry Warner Newberry, C.K. Dutton, P.H. Putnam, F.N. Newton, Mike Braun, and R.B. McConnel.