To make sure I identified the two beachfront buildings on the vintage postcard correctly, I showed this postcard (via email) to Frank and Carolyn Sipkovsky. Frank had worked at the Beaver House and knew Walt Rothgery, the man who ran it.
Frank and Carolyn confirmed that the building on the left is the Beaver House restaurant, and the one on the right is the Boat Club.
The current aerial view (below) provided by Bing Maps shows the massive changes that have taken place since the time of the postcard. The beach seems smaller. The picnic area, as well as many of the trees, are a casualty of a huge storage building. The Beaver House is also gone, apparently replaced by the other storage building.
Although it's not in either view, there used to be a motel on the property as well. I'll spotlight it on tomorrow's post.