Actually, John Blair (1731-1800) did have wife. He was married to Jean Balfour.
Cherie Booth Blair, the wife of Tony Blair, Britain's former Prime Minister, is a cousin of Julius Booth's, father of John Wilkes Booth.
Only by distant connection- Booth's uncle Algernon Sydney Booth was the great-great-great-granfather of Tony Blair's wife Cherie.
It doesn't appear that Drew Blair and John Blair were related. John Blair was one of America's founding fathers and a politician.
John Insley Blair died on 1899-12-02.
John Herbert Blair has written: 'History of a Blair family line'
John Blair Whyte was born in 1840.
John Blair Smith was born in 1764.
John Blair Smith died in 1799.
William John Blair died in 1943.
William John Blair was born in 1875.
John Rutherford Blair was born in 1843.
John Rutherford Blair died in 1914.