From the end of the Great War until the onslaught of the Great Depression, Americans had a good time, and nowhere was that more true than in Bar Harbor during high season. Amid peace and prosperity, the wealthy flocked to Mount Desert Island, foxtrotted at the Swimming Club and tangoed at the Dreamwood Ballroom on Ireson’s Hill. Rumrunners made covert pickups from isolated coves along the Mount Desert Narrows while Rockefellers, Vanderbilts and Astors coasted serenely in and out of Frenchman’s Bay. Horse-drawn carriages found a haven in the quiet roads of Lafayette National Park while roadsters sped along Bay Drive. Year-round residents faced brutal winters, but even then they had spirited celebrations with Winter Carnivals and Hayseed Balls as the ’20s roared on in Bar Harbor.