Private User Maybe you could do some research on this possibility if you know the Weissberg family. As far as I could see we do not have any such information on Geni, and a google search was unproductive too.
Maybe on www.Hebrewbooks.com you could find a sefer with family information on the Apter Rebbe.
R' Abraham Joshua Heschel "Ohev Israel"
You might find this link helpful for the rest of the Heschel family connections.,
http://wiki.geni.com/index.php/Jewish_Dynasties
Ooops, sorry, the link for Hebrew books is,
http://www.hebrewbooks.org/
It is a fantastic resource, as the front pages of the seforim often mention the author's family tree.