__ __|__ _JOHN SWAN __________| | | __ | |__|__ _Alexander SWAN ___| | | __ | | __|__ | |_MARGARET MCCROSSIN _| | | __ | |__|__ | |--Alexander SWAN | | __ | __|__ | _____________________| | | | __ | | |__|__ |_Elizabeth PITMAN _| | __ | __|__ |_____________________| | __ |__|__