There are currently two sons of the same father with the same given name but with different mothers shown: 1) Reb Jacob Halpern, A.B.D. Kreszow, and 2) Reb Jacob Halpern, A.B.D. Kreszow Could the persons who added #2 please have a look and figure out if this is correct. Please keep in mind the possibility that #2 is the son of another Eliezer Heilprin: Rabbi Eliezer Lipman Ashkenazi-Halperin, A.B.D. Tiktin Also, please review the descending lines of both #1 and #2 as there is confusion between them. If #1 and #2 are the same person then that persons offspring need to be reconciled. If they are two different persons then the proper offspring need to be segregated.