This part of the tree isn't quite correct yet. Here is how things should be according to Jacobi and Otser HaRabanim:
1) Rabbi Yoel ben Shmuel Sirkis, "The Bach" (BACH) has a daughter named Rivka Segal, [Tu"z 1st wife, Bach dau.] who marries first Jakob Ish Tam ben Elhanan having two sons, Zvi Hirsch Elchanan and Elchana Elchanan; her first spouse died and she married, as his first wife: Rabbi David HaLevi Segal, "Turei Zahavf" (TuZ/TaZ)
2) BACH has a son Rabbi Yehuda Leib Sirkes, ABD Chenzin who marries Rokhl bat Shmuel Zanvil Hammerschlag (this is not currently on GENI, found at Jacobi Papers, Volume 2, p, 457, 14.1 and 14.1m)
3) BACH has a son Shmuel Zvi-Hirsch Sirkes, of Pińczów who is married to Rivka Sirkes bat Avraham Chaim Schor; he dies and his widow with four children then married Rabbi David HaLevi Segal, "Turei Zahavf" (TuZ/TaZ) as his second wife. The TaZ raises her four children as his own, along with his children from his first marriage to (1, above),
4) Reikle Sirkis-Segal, [TuZ 2nd wife] b Rabbi Nachman Hacohen Lifshitz Rappaport, of Belz, Kremnitz, Dubno married Rabbi Shmuel Zvi Hersh Naftali Sirkis-Yaffe, Ish Yerushalaim, A.B.D. Brisk and did not ever marry Rabbi David HaLevi Segal, "Turei Zahavf" (TuZ/TaZ)
This is all asserted and sourced on these pages of the Jacobi Papers: Volume 2: p, 458, 14.3 and 14.3m, and 14.4 and 14.4m; p. 465, 11.3 and 11.3m, and at Otser HaRabanim, # 7848.
