Another descendant of the couple - Geoffrey Crust, a 49-year-old merchant seaman and Country and Western songwriter - still lives in Boston. He is fourth cousin once removed to Baroness Thatcher and a sixth cousin to Mr Major; but he has never met either.
The discovery was made last week by Paul Penn-Simkins, a genealogist. He tracked down Mr Crust, who had traced his family tree with the help of a researcher at Lincoln public records office.
Mr Crust, who has been married three times and has nine children, is a Tory voter. But he does not think Mr Major is much of a Crust. 'He's too dry,' he said, 'too quiet. I don't think he's got much of our blood - he hasn't got enough drive or toughness. Margaret Thatcher's more a Crust than him.'
As recently as the mid-19th century, Mr Major's ancestors and Lady Thatcher's lived just yards from each other in Boston. Both were called Samuel Crust: one was an iron fettler, the other a corn porter.
Full story, pages 22,23
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