I was just thinking that he changed his name!
Pat's death says she was born in Canada, so I assume they met and married in Canada.
Lilian's death says she was born 1898 in England, and there is no birth record index for her, and if the newspaper item posted earlier is right that Barney came over in 1901-ish, who is her mother?
A mystery! It must be solved!
Edit: I wondered why Lilian's husband didn't know her mom's first or last name, when Pat was still living, and in the same city. Barney must have been married before?