I could go for that. There's no question about 2nd & 3rd letters being "an" and the 5th and 6th are "on" (could be "or", though). That fourth letter doesn't look like an "n" at all; looks more like an "l" or "b". It's not a "t" because it's not crossed, and all the other t's are crossed. So therefore I agree, it's not Santon. Would two n's in a row look so completely different from each other?
I'll do my best to transcribe these wills and send them to you, Brian, as a contribution to your site.
The photocopy is very poor and probably won't scan well.