Rinehart was a son of mystery writer Mary Roberts Rinehart and a brother of book publishers Stanley Rinehart , Jr. and Frederick Roberts Rinehart .
Head entity: frederick roberts rinehart Q16009703 21 22 23
Tail entity: mary roberts rinehart Q460366 7 8 9
Relation (head \u2192 tail): P25
Inverse relation (tail \u2192 head): P40