The Grass Island Shack was built at the turn of the 20th century as a summer cottage. It burned down and was rebuilt in the 1930's and was renovated again in the 2020's as John Markowski's Eagle Scout Project.
The town moved it a little inland to higher ground in 2024.
See my additional images of the Grass Island Shack at flic.kr/s/aHsjLz7q9c