He was the son and heir of Peter Grubb , Jr. who , with his brother Curtis , had owned and operated the Cornwall ironworks founded by their father Peter Grubb in 1737 .
Head entity: curtis Q5195751 16
Tail entity: peter grubb Q7174402 7 8 29 30
Relation (head \u2192 tail): P22
Inverse relation (tail \u2192 head): P40