| | Peter WILLIAMSON 1886–1956 Annie Mitchell CUNNINGHAM 1885–1973 | | |
| | Peter Oswald WILLIAMSON 1844–1905 | | |
| | Peter WILLIAMSON 1815–1868 | | |
| | John WILLIAMSON 1753–1828 | | |
| | Alexander WILLIAMSON 1704–1760 | | | | Isabell WILLIAMSON 1683–1735 | | | | mother of David UNKNOWN 1660– | | |
| | | wife of John? MRS WILLIAMSON 1640– |
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| | | | | | | wife of John? MRS WILLIAMSON 1640– |
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