__
_ Duffield _|__
_William Duffield _|
| | __
| |____________|__
_Isaac Duffield _|
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| | ____________|__
| |_Mary Demeris _____|
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| |____________|__
|
|-- Duffield
|
| __
| ____________|__
| ___________________|
| | | __
| | |____________|__
|_________________|
| __
| ____________|__
|___________________|
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|____________|__