Dave Purdy passed away peacefully  at his home in late November. He was 81.

This from the Sebasticook Regional Land Trust website: Dave Purdy of Troy is the Bog Keeper: unofficial, but truly the keeper of Carlton Bog since he moved to his house near the dam in 1976.  There are two houses, cheek by jowl fronting Rt. 220 with their back yards abutting the dam site and sharing a driveway.  It’s Dave’s driveway and yard that folks use to get to the dam and the beginning of the backwater-flowage.