I'm researching my family tree and James Lawrence McMahon (Nov 15 1877-March 9 1953) was my great great grandfather i cannot find any information about him online. All i know is he was the husband of Mary Ellen McMahon nee McEvoy (1882-1954). He was the father of Edward Francis McMahon (1915- not sure if still alive), John William McMahon (1917-2001) and Anthony Martin McMahon (1921-1997)