The birth of Mark Sierakowski

Mark Leon Sierakowski was born on September 15, 1955 in Los Angeles County, California.

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

His potential siblings include John (born 1950) and Suzanne (born 1952).

Name Mark Leon Sierakowski
Sex male
Birthdate 09/15/1955
Birthplace Los Angeles County, California
Mother's Maiden Name Osguthorpe
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