Hello!
The church records of Antendorf and Hattendorf can be found at Archion.de under Niedersachsen: Landeskirchliches Archiv / Kirchenkreis Grafschaft Schaumburg. You can search the holdings without having a ticket for the paid portal. This is only needed if you want to look into the books. So one can determine beforehand whether a paid account is worthwhile.
Antendorf:
<https://www.archion.de/de/browse/?no_cache=1&path=41206-752190-752196&cHash=c85848b10ef4e8d251b62f5f555b2989>
Hattendorf:
<https://www.archion.de/de/browse/?no_cache=1&path=41206-752190-752380&cHash=553a5db8b0c113c40289baafd676a7cf>
Regards
Fritz AKA Afaldrabecus
