I have no other knowledge of Grover Ivester. My source is a member of the family in Norcross. However, this is the only Grover Ivester of whom I have knowledge, and he is in the Atlanta area, died about age 51, and of the age to be your great-uncle. Did you recognize any of the siblings? Or his parents? His family is buried in the Norcross area so I imagine you might find his grave there also.