Heather,
Welcome to WikiTree!
You have done something exceptional for a Rookie on WikiTree. You have actually created a profile for the person you are asking about? The fact that you have a branch leading up to him is awesome and more helpful that you realize.
Often we get just a name, no context. Like, "who is my grandfather John Smith married to"? Sorry I can't help, too much work to find out who you are talking about.
Do this, in your question box near the bottom where it asks for the profile id you are talking about, add this Todd-11595 Williams WikiTree ID, you can see it at the top of the profile). It will provide a link directly to your person of question and we can begin to see the relationships, dates and locations which are necessary to cracking your case.
I will give it a go and thank you for asking and doing the necessary preliminary work needed. Remember, we work from the known to the unknown. So as much detail as you can provide on the known will be helpful.
Family Groups are more helpful than people realize so be sure to fill out any known children and aunts and uncles.
Read this as a primer for working on a profile.
Genealogically Defined Profiles.
Thanks again for asking!