Career
Aaltonen was the first, and until 1992 the only Finnish Olympic medalist in swimming. He immigrated to Canada in 1929, but returned to Finland in 1937.
Aaltonen was the first, and until 1992 the only Finnish Olympic medalist in swimming. He immigrated to Canada in 1929, but returned to Finland in 1937.
In 1924-1930 and 1946-1947 he was a board member of the Finnish Swimming Federation.