Hi Michelle,
I checked the changes page for Ellen Hardy's profile and see that you added the "other last name" of Behymer McGowan on September 22, 2014, when you also added her birth and death dates. Nobody other than you has ever made any changes to this profile and that was the last date any changes were made to it.
The reason you could not see the changes page yourself is that you were probably not logged in when you looked at the profile (I see that you were not logged in when you asked this question).
I hope you come back soon to write a biography to properly honor your great grandmother and include sources of the information you add to her profile.
Have a great Thanksgiving!