Dina Katz Heschel (Wahl Katzenellenbogen), "haGedolah" - Dates issues

It looks like some of the children are duplicated. But, Rbzn. Dina Katz Heschel, "haGedolah" doesn't have an exact birth date or death date listed. So, any ages are just estimates, right?

Another thing about her:
I could not find solid information who was the real mother of
Rabbi Issachar Berish Babad

Was she as it now appears in geni:
Hesya Miriam Heschel
or:
Rbzn. Dina Katz Heschel, "haGedolah"
I asked the question in the ozar ahochma forum and they replied that the researchers of rabbinical families tried to find information about his mother, but were unsuccessful
Does anyone here have solid information about who his real mother was?

For R' Issahar's mother, look at the post underneath initiated by Randy Schonberg on 05/01/2020

Richard Gradstein Stepniewski,

Thank you, unfortunately I did"nt find

Richard Gradstein Stepniewski

I saw now, that on my grandfather's side your great-grandfather is the brother of my great aunt, and on my grandmother's side we are cousins (5), I did not know
nice to meet you

The post is in one of the discussions on Dina's profile. The post is from Raandy on 05/05/2020.
Yes we are cousins.