Hi: I'm trying to find the parents of William Henry WATSON, b. 1833, Baltimore, Maryland. He married Mary Ann CORCORAN in 1860 at St. Vincent RC Church in Baltimore. I recently found that he (William) had a brother-in-law, Cornelius McLAUGHLIN, married to his wife's sister, and a half sister, Margaret BROWN, who was born in 1845 and lived at 1820 W. Lombard Street in 1903. Is anyone familiar with these people? I would appreciate any suggestions. Thanks, Mary Jean