Yisroel Tzvi Neuman (born April 1947) is an Orthodox rabbi and one of the four roshei yeshiva (deans) of Beth Medrash Govoha (the Lakewood Yeshiva) in Lakewood, New Jersey. He shares this post with Rabbi Malkiel Kotler, Rabbi Yerucham Olshin, and Rabbi Dovid Schustal. He is married to the daughter of Rav Dov Schwartzman, who is a granddaughter of the founder of the yeshiva, Rabbi Aharon Kotler.

Can we draw the following conclusion?
Yisroel Tzvi Neuman is married to a Jewish person.
Yes