Jacob (Jekhuf) ben Meir, Gugenheimb is mentioned 35 times between 1661 and 1729. He died around 1729. His designation in the Stühlingen family tree is 'G1.3.4'. His father was Meir (Marum) ben Jacob, Gugenheimb.
Jacob ben Marum is presumably the son of Meir ben Jacob, GH. He tends to be mentioned in association with other members of the GH family. Furthermore, the pronounciation `Jekoff` corresponds to that of Marum ben Jacob`s father. In 1691 Jacob Marum`s son is mentioned together with Josel Marum`s son, Marum`s widow and son Jonas [R3; 09.29.1691]. In turn, Josel Marum`s son is identified as Marum Gugenheimb [R1065; 02.10.1693]. Jekhoff was under protection in Stühlingen from 1687 to 1729. Jekhuf was married to the daughter of Kalonymos [R4833; 10.10.1681]. .