One photograph of Matias (Matti) Niilo Kantokoski (Koski) and his wife Anna Milia Kantokoski (Koski) taken in Finland. The photographer was Y. Pyhalanhti.

One annotated print copy of a black and white photograph of Juho (John) Heikki Kantokoski (1888-1957), son of Matti Nikolai Kantokoski. In Sudbury he worked with his brother Matias (Matti) Niilo Kantokoski in the Prince Arthur Café.

One annotated print copy of a black and white photograph of Matias (Matti) Niilo Kantokoski (Koski) with his second wife Laura Siltanen whom he married on September 25, 1938 in Copper Cliff, Ontario.

One annotated print copy of a photograph of the Maki and Kantokoski families. In the front row from left to right are: Oscar Maki, Julia Maki (holding baby Lilja Maki), Eeva Annikki Kantokoski, Anna Kantokoski, and Veikko Vesa Kantokoski. In the back row are Oiva Maki, Oscar Maki, and Matti Kantokoski.

One annotated photograph of Laura Koski holding her daughter Marilyn. Standing beside them is her son Melvin.

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 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.