The Ancestry.com Tree of Dr. Moises Beutelspacher (Bidelspach) provides all the information about Isaac and Mary Ann and their children.

Meiser says his name was George Bidelspach, not Isaac. The Rossiter article also says Mary Ann married George Speidelbach.

I’m certain his name was Isaac Bidelspach, from his will and Census. Some sources say his name was George. His tombstone says Judge Isaac Bidelspach and I think people have read that as George Isaac.

There are three large monoliths sitting very near each other in Riverview Cemetery. One is Ben Hummel and his wife Catherine Hilbish, the other two are his two daughters and their husbands: George P Mertz and Amelia Amanda Hummel and Isaac Bidlespach and Mary Ann Hummel.

In 1900, the heirs of Issac Bidelspach conveyed to Jacob Frederick2 town lots. The named heirs were: Benjamin I Bidelspach and Lovina his wife, Agnes reed and S O Reed her husband, Annie Keefer and John S Keefer her husband, Margaret Gettle and Wm H Gettle her husband, Laura E Edwards and Albert Edwards her husband, Odelia Bidelspach.

Her death record is present on LDS film # 961101 with dod as shown and age 71y 4m. She was a widow.