Barteld Janssen & Wüpke Berends (Jemgum/Bingum)

I am looking for the parents of Barteld Janssen; died after 26 april 1792 and his wife Wüpke Berends; born about 1717, died 5 jan 1792 in Jemgum. Their daughter was Elsebeen Bartelds; born 9 march 1762 in Oostfriesland Bingum.