{geni:about_me} Jakob's parents are not known. Possibly he is identical to Wolf (Halef) Kornfeld, son of Michael & Anna.
I have assumed that Jakob listed in 1793 census is Jakob listed in Familiantenbuch. He belongs to Katzow from the Familiantenbuch, the area in which Isak Kornfeld was born in 1808 [Peter Lowe 27 Oct 2013]