I am researching my family tree and was interested in the surnames mentioned. I am especially looking for any information on the surname Rekosiak, Renkosiak, or Renkosik.
Rękosiak - son of someone nicknamed Ręka, Rękoś, Rękul, etc. Jaś Ręka = big-handed (ham-handed) Johnny
Nalipinski - dialectic pronunciaton of Nalepiński, toponymic nick from Nalepy
Gadamowicz - patronymic nick: son of Gadam (an old, now rarely encountered first name)
Warczak - Warcz could have been called that for growling at people or for hailing from the locality of Warcz, and his son would have typically been dubbed Warczak.
Warzak and Warczak are not the same name unless someone inadvertently dropped out a letter over generations of manual re-copying. Warzak might be the brewer's son.