

Shlomo Englard, "Shibushim nefotzim be-megilot yuchsin III" [Common distortions in genealogy], Tzfunot 19 (1992), 86-87 demonstrates that there is no evidence that the father-in-law of Meir Rappaport was Nachman Schtrenzl. See the attached.
הג"ר משה ירמיה גרשון כ"ץ רפפורט מחבר קול שמחה
1590 |
1590
|
בעלזא
|
|
1600 |
1600
|
Vienna, Austria
|
|
1610 |
1610
|
Lublin, Lubelskie, Poland
|
|
1639 |
1639
Age 49
|
חעלמא
|
|
???? |