What great information from the archives!
There is one other Wehinger in Monroe County, IL, USA:
Agathe Wehinger, born about 1853 in Austria, daughter of Ferdinand Wehinger and Anna Maria Rein
She married Johann (John) Lepp, brother of Pauline Wehinger's husband Wilhelm Lepp, on 9 Sep 1885 in Monroe County, IL (he was 51, she was 32)
I assume she was Pauline and Albert's niece