I found this St. Louis, Missouri Marriages, 1804-76
about Friedrich Wil Ahring
Name: Friedrich Wil Ahring
Spouse: Wilhelmine Lechtermann
Marriage Date: 23 Oct 1869
Volume/Page: 14-328


Then this 1 from Missouri Marriages, 1766-1983
about Friedrich Ahring
Name: Friedrich Ahring
Spouse: Wilhelmine Lachtermann
Marriage Date: 23 Oct 1869
Location: St. Louis
State: Missouri

Could you give more info there are a few of them in the census & such like the names & dates of the children & perhaps Fredrich & Catherine's birth dates if you have them

Josephine