When my GM was having her last child (only one born in hospital), nurse mentioned to my GM there was a woman in the same "ward" listing same name for her child's father... After talking with the woman, my GM discovered they both gave birth to children of my GF. He was a member of the Boston Mounted Police (rode horse) during the 1920s–30s. After telling this story we joke that he was the epitome of a mounted policeman... 'cause he was always mounting something! GM divorced him shortly after leaving hospital, and he went back home to OK, where he remarried and had many more kids (and I wouldn't be surprised if he had lots more outside of wedlock).