Updated: Feb 5, 2019
Thomas Peak was the grandfather of Governor Benedict Arnold. Austin's “One hundred and sixty allied families” gives the following table for the Peak family, stating that Thomas' son-in-law, William Arnold, referred to him as "Thomas Peak of Muoheny". (I only found the book on HeritageQuest).
Muchelney's location is shown in this map, with a closeup aeriel view from Google Maps. It looks like a great village to live in and I wonder how much has changed since my 15th great-grandfather was there.
“One hundred and sixty allied families”, by John O. Austin, 1893, p. 191.