Kassionas, John G. (1922-1999 )

John Gust Kassionas was born in Washington State on April 13, 1922, the son of Mary Stewart and Gust John Kassionas (1888-1958), a Greek immigrant and railroad foreman. He married Dolores Jean Dillon (born ca. 1931) in Butte County, California in 1977.

John and Doloras operated Kassionas Minerals in Alviso, California. They advertised in the Mineralogical Record from 1982 to 1995. John died in Alviso on July 18, 1999.