James Massy (1736-1790) (1736–1790) Parents Hugh Massy, 1st Baron Massy Mary Dawson Children Maria Massy-Dawson James Hewitt Massy Dawson Siblings Margaret Massy George Massy Frances Massy Caroline Massy Rebecca Massy Francis Hugh Massy Amy Massy Hugh Massy, 2nd Baron Massy Eyre Massy Elizabeth Massy John Massy Partners Mary Leonard