Another 44++ Bo Welch Catherine O'hara Sons. Actress o'hara is best remembered for her comedy work on second city television. Bo welch and catherine o'hara photos, news and gossip. They have named their elder son matthew welch and younger son luke welch. Born catherine anne o`hara on 4th march, 1954 in a naturalized u.s. Bo Welch Catherine O'hara Sons - Catherine O Hara Reveals She Had Adorable Reunion With Her Home Alone Son Macaulay Culkin Celebrity News Showbiz Tv Express Co Uk Actress catherine o'hara & husband director bo welch.