The birth of Mark Joncich

Mark Wesley Joncich was born on June 4, 1955 in Los Angeles County, California.

His father's last name is Joncich, and his mother's maiden name is Lehr. If Mark is still alive, he's now 70 years old.

His potential siblings include Paul (born 1961), Joan (born 1952), Christop (born 1958) and Michael (born 1950).