Findings:
- Augustus Keppel, Viscount Keppel
- Simon Harcourt, 1st Viscount Harcourt
- Viscount Hailsham
- Douglas McGarel Hogg, 1st Viscount Hailsham
- Viscount Clifden
- Viscount Stormont
- David Murray, 5th Viscount Stormont
- Viscount of Strathallan
- Viscount Selby
- William Court Gully, 1st Viscount Selby
- Viscount Harcourt
- Viscount Northcliffe
- Viscount Morley of Blackburn
- Henry John Temple, 3rd Viscount Palmerston
- Alfred Harmsworth, Viscount Northcliffe
- Charles Townshend, 2nd Viscount Townshend
- Charles Townshend, 3rd Viscount Townshend
- Frederick Robinson, 1st Viscount Goderich
- Viscount Rothermere
- William Waldorf Astor, 3rd Viscount Astor
- Viscount Bourchier
- The Castle of Viscount Von Wolfman
- Adam Duncan, 1st Viscount Duncan
- Viscount Hall of Cynon Valley
- Colwyn Jestyn Philipps, 3rd Viscount Saint Davids
- Viscount Saint Davids
- Viscount Gort
- Viscount Goschen
- Thomas Thynne, 3rd Viscount Weymouth
- Richard Bickerton Lyons, Viscount Lyons
- Viscount Howe
- Viscount Hampden
- Anthony David Brand, 6th Viscount Hampden
- Reginald Manningham-Buller, 1st Viscount Dilhorne
- Viscount Ruffside
- Viscount Bolingbroke
- Viscount Runciman
- Walter Leslie Runciman, 2nd Viscount Runciman
- Viscount Saye and Sele
- Viscount Torrington
- Viscount Castlereagh
- Viscount Astor
- Viscount Rhondda
- John Morley, Viscount Morley of Blackburn
- William Lamb, 2nd Viscount Melbourne
- Viscount Valentia
- Viscount Lisle
- Viscount Stansgate
- Viscount Hereford
- Viscount Melbourne
- Vickers Viscount
- The Cloven Viscount
- Viscount D9e
- Viscount Linley
- Viscount
- Earl of Haddington
- Thomas Hamilton, 1st Earl of Haddington
- Pownoll Bastard Pellew, 2nd Viscount Exmouth
- Emmanuel Scrope Howe, 2nd Viscount Howe
- Jacob Bouverie, 1st Viscount Folkestone
- Cyril John Radcliffe, Viscount Radcliffe
- Viscount Palmerston
- Viscount Dilhorne
- Viscount Melville
- Samuel Hood, 1st Viscount Hood
- Viscount Keith
- George Keith Elphinstone, Viscount Keith
- Haddington
- Viscount Exmouth
- Edward Pellew, 1st Viscount Exmouth
- Viscount Weymouth
- Viscount Wentworth
- William Fiennes, 1st Viscount of Saye and Sele
- Henry Addington, 1st Viscount Sidmouth
- Viscount Sidmouth
- George Byng, 1st Viscount Torrington
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