Welcome to WikiTree, Kevin. You have already received some excellent advice from two wonderful ladies, so I will save my post to just say Hi, and wish you the best of luck here at WikiTree.
I would like to reiterate that you will have to upgrade (at no cost) by adding your genealogy communication preferences. To do this, click on the upgrade link on either your navigation or profile page.
You will then be able to correct information on your grandmother, Lois Ball's profile, as well as add additional family members.