- male, deceased (1984)
- Henry John Sinclair (6 June 1907 - 14 February 1984) was the second and last Lord Pentland. He inherited the title from his father, John Sinclair,...
- male, 69 years old
- Sir Clive Marles Sinclair is a well-known British entrepreneur and inventor of the world's first 'slim-line' electronic pocket calculator in 1972...
- female, 38 years old
- Charmaine Sinclair (born April 23, 1971) is a retired English glamour model.
- male, 56 years old
- John Archibald Sinclair, 3rd Viscount Thurso (born 10 September 1953), known as John Thurso, is a Scottish businessman and Liberal Democrat...
- male, deceased (1970)
- Archibald Henry Macdonald Sinclair, 1st Viscount Thurso KT CMG PC (October 22 1890 - June 15 1970), known as Sir Archibald Sinclair, 4th Baronet...
- male, deceased (1835)
- Sir John Sinclair, 1st Baronet Scottish politician, writer on finance and agriculture and the first person to use the word "statistics" in the...
- male, 61 years old
- Malcolm Ian Sinclair, 20th Earl of Caithness, PC (born 3 November 1948) is a British Conservative politician and member of the House of Lords as...
- male, deceased (1400)
- Henry I Sinclair, Earl of Orkney, Baron of Roslin, and Lord of Shetland (c.1345-c.1400), was a Scottish explorer and nobleman. He is sometimes...
- male, deceased (1484)
- William Sinclair (1410-1484), 1st Earl of Caithness (1455-1476), 3rd Earl of Orkney (until 1470), Baron of Roslin was a Scottish nobleman and the...
- male, deceased (1925)
- John Sinclair, 1st Baron Pentland (7 July 1860 - 11 January 1925) was a Scottish politician. Captain John Sinclair of Lyth was the grandson of Sir...
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