Fonds is comprised of three bound volumes of correspondence, sketches, paintings, diaries, receipts, newspaper clippings, deeds, baptismal and marriage records, family trees, and scrapbooks pertaining to the Wallis family. Included also are several documents pertaining to the Forbes family, related to the Wallis family through marriage. The Peterborough-born sculptress Katherine E. Wallis (1860-1957), whose papers are located in Trent University Archives, was a member of the Wallis family.
The volume spines are inscribed as follows:

• Papers of Louisa Charles John Mary and Adah Wallis 1854-1882 (Vol. I) (Located in Box 1);
• Papers of Louisa Charles John Mary and Adah Wallis 1883-1895 (Vol. II) (Located in Box 2);
• Captain R.M. Forbes, R.N. 1774-1846 and Family (Located in Box 3).
  Fonds is also comprised of typed transcriptions of some of the items; these are located as received within the volumes.

This item is a pencil sketch depicting three houses, each of which has two chimneys, with a continuous fence running along the front of all three. There is a woman, man and child walking towards one of the houses. On the back of the sketch is written "#17140 at Roy's Studio, Peterborough". The sketch is most likely by Rev. Michael Farrar and shows Hastings, Canada West.

This fonds consists of various original and copied records of the business activities of Thomas Hay, and related family data, such as birth-death records, correspondence, drawings (technical and sketches) and photographs. A small genealogical table compiled by the archivist is enclosed.

Fonds consists of correspondence, journals, and newspaper clippings related to the family of Thomas Alexander Stewart and Frances Stewart. Many papers originate from the family of their son, Henry Louis Stewart. Also included is one photograph, a sketch of Auburn, the family homestead, and a hand-drawn map.

This fonds consists of 4 boxes of materials related to the life and works of Spencer J. Harrison.

This collection consists of 41 reproductions of sketches including Toronto street scenes from 1882, Lindsay, Peterborough in 1882, Belleville, and Kingston, all in Ontario as well as some reproductions from sites in Quebec.

This addition to the fonds consists of one pen and ink drawing of the Court House, Peterborough.

The fonds consists of two photocopies of drawings of early Peterborough by Edward C. Caddy. The first is a drawing of Conger Hill, 1839-1842, and the second is a drawing of the Courthouse and St. John's Church, 1839.

This addition to the fonds consists of a pen and ink drawing of Conger House and hill, north of George Street in Smith Township, by Edward C. Caddy. The cardboard backing from the original frame has information regarding the sketch and donor.