Looking for Otto J. Kyllönen USA, Maine

[Mika Kyllönen]

I'm looking for my grandmother's brother, Otto Johannes Kyllönen born in Kuhmo 30.7.1885 died in 1942 the U.S. and his wife, Elsa Sofia Heikkinen born. 8/12/1885 Suomussalmi. dead 1950 U.S. Possible grandchildren of America. They had three children: Valpuri, Vieno and Toini.
They lived near Mechanic Falls Maine.
The names of their grandchildren, I do not know.