Dublin has long been a hub of intellectual activity.
An agricultural slump after the Civil War made sheep farming unprofitable, but farm families, here and elsewhere, found a new cash crop in summer boarders. The Appleton House hotel, later the Leffingwell, was opened in 1871. The first summer cottage was built in 1872, and over fifty others followed in the next twenty years. For the best part of a century, Dublin was first and foremost a summer resort. Much of the land painstakingly cleared for farming went back to trees. Care-taking for summer estates furnished the principal source of employment for the remaining permanent residents, whose number had dropped to 408 by 1920.
Like other American summer resorts, Dublin began as an artists' and writers' colony. Unlike the others, however, Dublin retained the loyalty of its art colony, among whom were the painters Abbott H. Thayer and his pupils, Richard Meryman and Alexander James, as well as George deForest Brush and Joseph Lindon Smith. Amy Lowell, the cigar-smoking imagist poet, had a house on Beech Hill. Mark Twain spent two summers here in rented houses. In the leisurely days before World War I, the British Embassy moved for several summers to what is now the Pool's house on Snow Hill Road.
Source: Dublin Town Website.