Dr. Daniel Fisher practiced medicine in Edgartown. In 1829, he married Grace C. Coffin. She was the daughter of a wealthy whaling-ship owner. Dr. Fisher soon discovered that there was more money to be made in whaling than in making house calls. He built a whale-oil refinery, a spermaceti candle factory, a bakery to supply hard-tack biscuits to whalers and an up-island mill to grind hard-tack flour. He was founder and president of the island's first bank.