Any suggestions would be appreciated.
Cajcharus - Possibly Zachariusz, Zachary. Biblical name "Jahve remembers". English Zechariah, various variants, shortened forms: Zach, Zack, Zac
Cajitany - Cajetan, Kajetan (Latin meaning: from Caieta, now Gaeta) , popular amongst Armenian minority
Jojajczyk? - Does not look like a first name, could be a clan name (coat of arms), written in front of last name. The closest that comes to mind is Jasieńczyk. This could also be pseudo, or nome de guerre, such as Zagończyk (actual one from WWII).
Feitko - Possibly Fredko? That could be a Ukrainian name, short of Ferdinand (after Ferdinand I of Austria). One of my ancestors (Polish) was baptized Ferdynand, but family called him "Fredek", "Fredzio".
The following crop up regularly. I don't know whether there are modern equivalents.
Cunnegunda - Kunegunda - German origin. Several Polish princesses wore that name in middle ages. Polish modern equivalent is Kinga - it came from Hungarian Kinga, diminutive of Kunegunda.
Gasparus - Kacper, Kasper, Kaspar, Gaspar. Kacper is still in use in Poland.
Theela - ?? There is no "Th" in Polish, but this could signify a Greek origin. In Greek-Orthodoxy there are names starting with "Theo" (From Theos - God), such as Theodore (Polish Teodor), Theophile (Polish Teofil), etc.
Pelagia - Pelagia, rarely used nowadays
Apolonia - Female form of Apoloniusz. Other forms: Apolinaria, Apolla, Apollina, Polonia. Diminutive forms: Pola, Lonia, etc.
Known: Pola Negri (born Apolonia Chałupiec), actress