I have an index to all volumes of the Kutno BOOK OF RESIDENTS (BOR).  I could not find any direct reference to BAUMAN or anything similar, but did see  a notation which I can't interpret:  On a detailed listing for my GOLDMAN ancestors in Kutno that our researcher sent to me, in Volume III-77-81 there is a listing for Goldman, Chaja nee' Hodys b. 1870 with this cryptic notation where they usually indicate a son of or daughter of someone else in the BOR.  It says "1. Bauman 2. Kiersztajn, 2nd w/o".  Tracing that particular family unit, it seems she was married to Uszer GOLDMAN b. 1868 and the son of Matys Ajzyk GODMAN. This doesn't tell you that much about a BAUMAN family other than someone with that name or who married a person with that name, was in Kutno.  It does not seem that any BAUMAN was a head of a household and listed in the BOR which covered a long period.  Volume III, for example dates from 1872 and was last updated in July, 1931.

Dick Goldman
Boynton Beach, FL