Looking through the secondary resources, Labor Cards, Jewish Gen, and the records database, I was unable to find any additional information on Lajb Abbe. If i couldnt find any information on Lajb I decided to try to find out about his family by a last name search with just Abbe. As I clicked down the list I paid attention to birthdates and ghetto addresses. Coming upon Paja Laja Abbe, she had the same address as Lajb:
11 Listopad 20 Sperling 12
and also a maiden name was listed :
Paja Laja Dobrzynska
Born in 1900 she would have been 28 (plausible) when Lajb was born.
Also found a sister/sibling?
11 LISTOPADA 20 Sperling 12 27
also in her profile there is a note: A.G. 3.7.44
(AG or A.G. + date / Change of registration to new address, or deportation (to Chełmno))