__
__|__
_JOHN SWAN __________|
| | __
| |__|__
_Gustavus SWAN ___|
| | __
| | __|__
| |_MARGARET MCCROSSIN _|
| | __
| |__|__
|
|--Susey SWAN
|
| __
| __|__
| _William WILSON _____|
| | | __
| | |__|__
|_Isabella WILSON _|
| __
| __|__
|_Jean BELL __________|
| __
|__|__