Agee(e) Family Mystery

I posted a photo from this old cemetery before. This is the burial plot of the Agee family. I am puzzled about the name as it is carved into the back of the steps. It appears that it was carved as AGEE at one time, but someone added an extra E at a later date. Is this how you see it too? Any guesses what the situation was here? I really can't imagine. I have to get back up there to find out if that really is an added E or a design.