I have some other info for you that you may or may not have. John and Ann O'Drain were listed in the 1940 Census residing with a nephew, George Reardon, and his family at 121 Cherry Street. George was the son of John's sister, Florence O'Drain Reardon.
May I ask how you are related to John? He would be my 1st cousin 1x removed. His father, Patrick, was my grandfather's (Alexander L. ODrain) brother.