There is no name for such a person, because there is no relation. Example. Bob and Susie are brother/sister. Susie marries Tom. Bob and Tom are Brother's in law. Bob has NO relation to anyone else in...
MOM & DAD??? No, Seroiusly... Frank's Father's name was Francis & his mother's name was Rosemary.
sow
yo mom make yourself useful and make me a sandwich
Heidi and Peter