try looking at register - they are patron submitted - in 1911 transcription no mother's name given - my own guess is yet another mormon invention based possibly on misinterpretation of the will mentioning Isable Harrision - all such that mention Isable appear to be guesses and I think incorrect.

I guess most who have thanked JMO for her wills have also noticed the strong correlation of the names researched with the overwritten patron submissions in the IGI - too often the IGI patron submissions add 'information' that is actually not in the register