The USC marriage record of v. Czarnowski oo Elisabeth Mathilda Koehn has different birth date and different parents:
born 26.01.1853 in Małe Gliśno
parents Friedrich v. Czarnowski and Marianna Hamerska.
Thus, the parents for Teodor here on Geni are wrong.
The record con be found on genealogiawarchiwach.pl
PTG: Chojniczki - USC 1880, 1618/20, 6_1618_0_20_0009, 8: Theodor v.Czarnowski oo Elisabeth Mathilde Koehn.
The church record (Konitz/ Chojnice Nr. 29/1880) also states that he was widower.