Mary Musgrove was a half-breed Creek Indian who served as interpreter for James Edward Oglethorpe after he established Georgia in 1733. When her husband, a white trader, died in 1735, she married Jacob Matthews in 1736. He died in 1742. She then married Thomas Bosomworth, who came from England to Georgia as a clerk and soldier, became a preacher and gave up the ministry when he married Mary Musgrove Matthews.
The British crown deeded Saint Catherines Island to Mary Musgrove Matthews Bosomworth as a reward for her services as an interpreter for Oglethorpe. She and her husband built a home and established a plantation on the island. When she died he became owner of all her property. They had no children. He made his home in Savannah, Georgia, after she died.
Button Gwinnett arrived in Savannah. Georgia, from England in 1765 to pursue a career as a merchant. By 1774 he had bought Saint Catherines Island from Bosomworth, established a general store at Sunbury, brought his wife and one child from England, was residing in the Bosomworth home on Saint Catherines Island and had embarked on a political career.