Complex sentence: Dartmouth College graduate Ernest Berkeley Balch, son of Episcopalian minister Reverend Lewis Penn Witherspoon Balch, began operating the camp and chapel in 1881, not realizing that the island was privately owned.
Split into simpler sentences: Dartmouth College graduate Ernest Berkeley Balch was the son of Episcopalian minister Reverend Lewis Penn Witherspoon Balch. He began operating the camp and chapel in 1881, not realizing that the island was privately owned.