Leon Koscianowsk died on March 18, 1963 in Los Angeles County, California. Born in Poland on March 23, 1887, he lived to be 75 years, 11 months, 23 days old.
His mother's maiden name was Lewandow.
Researching Leon Koscianowsk's family?
Look up living relatives, addresses, phone, and family history on Spokeo.
Search Now