__ __|__ _JOHN SWAN __________| | | __ | |__|__ _WILLIAM SWAN _| | | __ | | __|__ | |_MARGARET MCCROSSIN _| | | __ | |__|__ | |--Mary SWAN | | __ | __|__ | _ROBERT RUSSELL _____| | | | __ | | |__|__ |_MARY RUSSELL _| | __ | __|__ |_MARY ? _____________| | __ |__|__