On the death certificate of my father-in-law, his mother is listed as Margaret Elizabeth DishEroon. Found a picture of the gravestone for my husbands ggrandparents. The wording is as follows:
Elizabeth Morgan 1867 - 1946
no other text. Does sound like the same Margaret Elizabeth Disheroon that you speak of. I think that the next step would be for me to find out the parents of 'my' Margaret Elizabeth. This may take awhile, let you know what I find out.