The birth of Marykate Williamson

Marykate Williamson was born on March 16, 1988 in Sonoma County, California.

Her father's last name is Williamson, and her mother's maiden name is McElroy. If Marykate is still alive, she's now years old.

Her potential siblings include Grace (born 1993), Reilly (born 1985) and Sheila (born 1990).