Hi George,
I assume you're asking about your grandfather, Robert Wilcox, since I see that you've just posted a memory note on his page.
https://www.wikitree.com/wiki/Wilcox-4678
But since you are the manager of his profile, you can just click the Edit tab across the top, and make any changes you feel are necessary. Just note the sources for those changes.
Let us know if we've misunderstood your question, or if you need any additional assistance.