My great-grandfather (Schaya Gottlieb) o"h used to say that he was a descendant of Rabbi Dov Berish Gottlieb zt"l, author of the book יד הקטנה. He was born in the Hebrew year 5500, so either 1739 or 1740 in the Gregorian calendar. He died on 23 Av 5556, which corresponds to 26th or 27th August 1796. He was a Rav and posek in Sieniawa. His father's name was Yaakov.
Let's see if we can fill in the missing generations.
