. . "1888" . . . . "Francis Thomas Gregory" . "Francis Thomas Gregory" . . . "Francis Gregory" . . . . . . . . . "Francis Gregory and his brother Henry" . . . . "Francis Thomas Gregory's" . "Professor F. T. Gregory" . . "1821-10-19" . . "FT Gregory" . . . . . . . . "Francis Thomas Gregory" . . . . "1888-10-23" . . . . . . . . . "Francis T. Gregory" . . . "F.T. Gregory" . "Francis Thomas" . "Frank Gregory" . "1821" . .