There are five collections that relate to the William K. Perrin Papers and are located at Special Collections Research Center, Swem Library, College of William and Mary.
John T. Perrin Papers, 1770-1931. 11 boxes. Collection number: Mss. 65 P42
Perrin Family Bibles Collection, ca. 1740-1938. 3 items. Collection number: Mss. 93 P42
Eleanor W. Perrin Diaries Mss. 96 P42.
James Monroe Nicolson Manuscript Volumes, 1853-1870. 4 items. Collection number: Mss. 76 N52
James Monroe Nicolson Account Books and Papers, 1802-1852. 38 items. Collection number: Mss. 93 N52