I continue to read the replys on Tinnermann. Although it is not in my family, I became interested when Guentrode was mentioned. I do not know of what faith you are checking on but a kind soul on this list forwarded me the snail mail address of "Katholisches Pfarramt "St. Georg Hinterdorfstr. 2, 37308 Guenterode. and the E-mail address of PF.Jacob@online.de. Tel: 036085 / 40311 Fax:036085/40437.
It only took me about a week to get an answer. I am still smiling because I have searched for this for years.
I was lucky enough to go back four generations. I hope this can be of help to you as well God Bless and have a Happy Easter.
Anna Knaebel in Missouri, USA