Locating more info on Sweer van Velson

This profile was for the most part empty no sources, bio, etc. when I came across it. He was a nobody but I had a hunch he was somebody.
I found quite a few sources and pieced them together. He was prominent citizen. A landholder, politician and prominent businessman
who seemed to have a lot of clout in his circle. I think there is more to be found on him. I have another hunch info on his life with his previous wife and
children is available. If anyone is interested in looking feel free to do so.

Sweer Theunisen van Velson

thanks Robert Moon