The collection consists of two copy prints of images of Crosby's Mill. Crosby's Mill was one of many independent small mills which operated in Prince Edward Island in the nineteenth and early twentieth centuries. It was in existence at Bonshaw as early as 1841, owned and operated by Andrew C. Crosby. The complex included at various times carding, shingle, saw, and grist mills. For a brief period of time it was even used to generate electricity for a few surrounding residences. One of the copy prints was copied from a photograph taken circa 1890. The other was a photograph taken of a watercolour painting of the Mill in 1917 by C. M. Seaman.

The fonds consists of seven items relating to the McRae family and the property on Lot 30. These include the will of Donald McRae (1866), lease of a piece of property to Neil MacDougall (1884), agreement with John Beecher Crosby for the use of a spring on the McRae property (1898), receipts for taxes, and a bill for the funeral expenses of D. McRae.