I know your post is really old but I was doing some searching today and came across it. I married into the Govro name - and was told that it was changed by my husbands great grandpa from the original version. His family is in Farmington and his Grandpa is still there. If you are still looking for info - I can connect you with them if that's helpful.
By chance is your husband a twin or have twins in your family? That's heavily in my husbands line.
Also - I had another friend who found out his father (maybe grandfather) was adopted as well - original last name Govro and changed to McReynolds.