Mother: Ann Howell
Death: aft 1732
Death Source: Mother's will
Caleb was a son of Walter Reeve and his second wife Ann according to the estate account for Walter and Ann's will.
In his will, his brother Walter gave some land to his sons which Caleb had purchased in Salem County and Township of Marrington. This land was then deeded by Walter's son Jonathan in 1756 to Micajah Reeve and describes the land as that which "Walter Reeve became also lawfully seized of as being Eldest Brother & right heir at law to his brother the above named Caleb Reeve."
It's likely Caleb was already deceased by the time his brother Walter wrote his will in 1753.
1732 Will - Anne Reeves - New Jersey Will Records, Vol. 3, p356
1753 Will - Walter Reeve - New Jersey Will Records 7, p458
1756 Deed - Jonathan Reeves Jr. to Micajah Reeve - West Jersey Deeds Book P, p220
Archive.org - Calendar of New Jersey wills, administrations, etc, Vol. 1, p122