[3][4] After emigrating to the United States, Massie became master of Bonaventure Plantation in Thunderbolt, Georgia.

[5][6] His will mentioned Sarah's daughter, Anna Elizabeth, but it is not known if Massie was her father.

At the time of his death, Massie owned over sixty slaves.

[7] He left $5,000 to the City of Savannah;[8][9] to Glynn County, Georgia; and Elizabeth, New Jersey, for the establishment of free schools for the poor.

[3] The Massie School, located in Savannah's Taylor Square, is named for him.