Siirtolaisuus Viitasaarelta Yhdysvaltoihin ja Kanadaan - Emigration from Viitasaari to the United States and Canada

"Ontario Marriages, 1869-1927," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKM5-K91M : 15 March 2018), Walter Matson and Sawdra Joki, 30 Dec 1921; citing registration , Port Arthur, Thunder Bay, Ontario, Canada, Archives of Ontario, Toronto; FHL microfilm 2,296,570.

"Vermont, St. Albans Canadian Border Crossings, 1895-1954," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKQS-KLHD : 16 August 2019), Walter Matson, 1920; citing M1464, Soundex Index to Canadian Border Entries through the St. Albans, Vermont, District, 1895-1924, 412, NARA microfilm publications M1461, M1463, M1464, and M1465 (Washington D.C.: National Archives and Records Administration, publication year); FHL microfilm 1,561,498.