The 1920 & 1930 Census, the California Death Index, and the WWI & WWII Draft Registration Card all say he was born in Maine, and both draft registration cards say it was Bangor, Maine. Also, in a database about members of the military from Maine, it says he was born in and resided in Bangor. So, seems likely he lived in Maine at some point.
The WWI draft registration card lists an Islington address and an employer in London.