Here's something of interest: 1788 Tax assessment of "unseated lands" in Colerain Township Bedford County, PA. Submitted by William Iiams (Collector). This should be the William who moved to Breakneck Rd. in Allegany Co. MD. On the list is Thomas Iiams. This is probably Sgt. Thomas. I've never seen him listed in Colerain Township. As the land is "unseated", he must not have stayed.