Canadian-born Gene Lockhart made his first stage appearance at age 6; as a teenager, he appeared in comedy sketches with another fledgling performer, Beatrice Lillie. Lockhart's first Broadway production was 1916's Riviera. His later credits on the Great White Way included Eugene O'Neill's Ah, Wilderness and Arthur Miller's Death of a Salesmen, in which Lockhart replaced Lee J. Cobb in...