John D. Rockefeller Jr. (1874-1960) donated huge tracts of land to the park. "Of course," adds his grandson David Rockefeller Jr. (who spends each August on Mount Desert Island), "his unique ...

Rockefeller Jr. claimed it as a summer retreat ... Rockefeller honeymooned here in 1934, as did another son, David, in 1941. As a result, the JY Ranch was the only parcel John D.