John Greenwood

Portrait-painter, born 7 Dec. 1727 in Boston, Massachusetts, was a son of Samuel Greenwood, merchant, by his second wife, Mary Charnock, and a nephew of Professor Isaac Greenwood of Harvard College. In 1742, just after his father's death, he was apprenticed to Thomas Johnston, an artist in watercolours, heraldic painting, engraving, and japanning.