I was just speaking with Kim and she mentioned you were looking for other children. I have actually started my own family tree - just last week as my daughters wanted to know their heritage on my side. You may be able to search it up Tyers/Yuzwak Family Tree. I was able to get info on his side back to the early 1800's. Apparently someone in the family tree possibly in England has been able to provide a lot of information. Obviously there is a lot more updating to do!