It gets hard trying to find ladies' maiden names. I have a bunch that I have been stuck on for many years.
About the only thing that I could think to look through was "Pioneers of Mendon" which was a series of newspaper columns in the early 1920s by Anah B. Yates. One of the things that was included in the columns were early church records for both Mendon and Bloomfield. There wasn't any record of the marriage of William and Hulda. There are very few records of those early times.
Diane Ham works a full time job and only part time as the Historian. She is probably backed up.
I'm sorry that I can't be of any other help.