Bio: Mother of Larry Trainor. Larry would not allow her to see him after he became irradiated until he was put in his protective bandages. A widow, Mrs. Trainor made her living from boarders renting out rooms. Larry's irradiated condition caused boarders to leave. He left her for a lead-lined room to make sure she maintained income.
In Doom Patrol (vol. 2) #43, Joshua Clay received a phone call that Mrs. Trainor had passed away and was outraged at the seemingly indifferent response from Rebis, who was a merging of the negative energy being with Larry Trainor and Dr. Eleanor Poole.