Thanks very much for directing me to the on-line OFB for Lingen.
Unfortunately, it does not show the marriage and birth dates for the parents of
Johannes Robertus TANGEMANN *1. Aug. 1824 Lingen
nor for the parents of
Maria Elisabetha MESTEMAKER *8. Okt. 1823 Lingen.
I'll contact the author of the OFB directly, but if anyone else has the information, I'd appreciate your help.
Thanks very much.