This fonds contains personal correspondence between William Brydone Jack and his wives, Marian Ellen Peters and Caroline Disbrowe. In letters to Marian Jack mentions his astronomical work with Drs. J.B. Toldervy and James Robb. Also included are newspaper clippings and a sketchbook belonging to Blanche Jack, Dr. William Brydone Jack's daughter.

This fonds consists of an account book of personal and family expenses, 1847-1885, belonging to Dr. William Brydone Jack. There are also photostatic copies of a letter from Dr. Jack to Benjamin R. Stevenson, Surveyor General of New Brunswick concerning measurement of the meridian line through Fredericton, 14 October 1874. There is also a copy of a certificate of appreciation from the University of New Brunswick on his retirement in 1885.

The fonds consists of typescripts of addresses and lectures, including a series of lectures on astronomy for the general public, correspondence, handwritten essays, genealogical notes, and photographs. The correspondence includes letters relating to the establishment of the observatory in Fredericton, and the determination of Fredericton's longitude. Genealogy includes birth dates of Jack family members and Disbrow family history. Photographs include Caroline Disbrow Jack, William Brydone Jack, a group photo that is possibly of staff of UNB or King's College (no date), and a University of New Brunswick building.

The fonds consists of eight notebooks of William Moore on natural history subjects.

The William Lusk Webster collection, with the exception of a few personal papers and the items collected by Ralph Hewson (the Webster family lawyer and a local historian), covers the years after Dr. Webster's return to Shediac (1950). The collection includes correspondence and notes on the Fort Beauséjour Museum, Shediac; Acadian history; and the New Brunswick Museum. There are land grants and transfers with related notes and correspondence.

The material assembled by Ralph Hewson includes the school register of Fort Lawrence, 1878; assessment records from several polling districts, 1870-1873; lists of officers of Cumberland County, 1874,1881,1883; and financial records of St. Andrews Church (Pointe-du- Chêne), 1866-1812. Also included are records and correspondence of the New Brunswick Museum Foundation, 1949-1971 and personal papers of William Lusk Webster, 1920-1974.