Rabbi Leib (Gintszburg) "Baal HaTosafot" - Conflict With Otser

There his been some back and forth on this question in the revisions, and nobody seems to be including any sources. I have yet to see any sources showing that he is the son of Naphtali Hirsch Gunzberg. I believe the confusion arises from the Minsk Yizkor Book quoted in 'About' section of Rabbi Leib "Baal HaTosafot" which says the latter is the grandfather of Shaagat Aryeh, who Oster says is the great grandson of Naphtali Hirsch Gunzberg. The Minsk Yizkor Book read in conjunction with Otser supports the conclusion that HaTosafot is the son of Naphtali Hirsch Gunzberg, but only if one changes what is in Otser, Otser HaRabanim states that the grandfather of Shaagat Aryeh is Shaul b. Naphtali Hirsch Gunzberg and not a Leyb. There is no son Leyb shown for Naphtali Hirsch Gunzberg in Otser HaRabanim # 16100.

Unless someone has a source perhaps they should be disconnected until a source appears?

I don't know how to resolve the conflict over the father of Shaagat Aryeh: the Minsk book says he is Asher b. Leyb (HaTosafot) b. Not Stated and Otser says Asher b. Shaul b Naphtali Hirsch.