Series consists of a letter dated April 6, 1939, to Matti Kantokoski from E.D. Wilkins, Clerk of the Peace, with his Certificate of Naturalization (dated March 30, 1939) attached; and a certificate of greetings from the Imperial Order Daughters of the Empire (I.O.D.E.) to Matti Kantokoski on the occasion of him becoming a British subject and Canadian citizen by naturalization in Sudbury, Ontario.

Series consists of two handwritten reference letters; one for Anna Koivula (Kantokoski/Koski) and one for her daughter Ann Chisholm (Ann Eva Kantokoski/Koski). The reference letter for Anna Koivula (born 1903) was written by Lydia Lofman, a pharmacist's wife, in Lapua Finland, dated May 1, 1921, regarding work in a kitchen, while the reference letter for Ann Chisholm (nee Koski, born 1924) was written by Mrs. J. Ferrier from Sudbury, Ontario, dated June 14, 1942 concerning her job doing housework.

Series consists of an annotated Ontario Department of Mines Certificate of Mine Rescue Training issued to J.H. Heit of Falconbridge, Ontario in June 1948 by Chief Inspector of Mines W.O. Tower and Superintendant of Rescue Station G.G. McPhail. The certificate signified the completion of mine rescue apparatus training at the Sudbury Rescue Station. Training included hard labour in noxious and irrespirable gases and the participant was required to give evidence of being qualified to care for and use rescue apparatuses in mines (basic training). This certificate includes three seals signifying completion of additional training; The Standard Mine Rescue Training seal (in the colour red) dated 1949 and signed by Rescue Station Superintendent G.G. McPhail, the Advanced Mine Rescue Training seal (in a gold) dated 1951 and signed by Inspector of Rescue Training P.C. Smith, and the Supervisory Advanced Mine Rescue Training seal (in gold) dated 1961 and signed by Inspector of Rescue Training G.G. McPhail.

Fonds consists of publications, programs, a personal account and memorabilia relating to Jim Heldmann and his activities at Waterloo College (now Wilfrid Laurier University).