Family: Miles Brockbank / Margaret Thirnbeck (F41)
m. 23 May 1774Christopher Thirnbeck (1709-1797) 
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Elizabeth Whittington (1715-1795)
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| Anne Thirnbeck (1735-1795) |
| Agnes Thirnbeck (1736- ) |
| Jonathan Thirnbeck (1738-1738) |
| Jonathan Thirnbeck (1741- ) |
| Robert Thirnbeck (1741-1808) |
| Elizabeth Thirnbeck (1744- ) |
| Christopher Thirnbeck (1749- ) |
| Thomas Thirnbeck (1752-1766) |
| Mary Thirnbeck (1756- ) |
| John Thirnbeck (1758- ) |
| Margaret Thirnbeck (1746- )
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| John Brockbank (1776- ) |
| Elizabeth Brockbank (1778- ) |
Christopher Brockbank (1780-1858)  |
| Mary Brockbank (1783-1860) |
| Miles Brockbank (1785-1820) |
| Robert Brockbank (1787-1806) |