Walter, you might be interested to know that Adam's father was Walter Chisholm. Adam was born in Yarrow Parish, Selkirk County, Scotland, 29 Dec 1692. I got the record from Scotland.
I have the Chiz book. Have searched for years to find proof that William Chism was m to Ann Praytor and have never been successful. It seems all a possibility and nothing solid. There is a lot of Praytor/Prather info and it goes back to Thomas Sprigg-John Nutthal-Mary Hyde and into the royals.