437 entries have been contributed to by Vickers, John A:
- Smith, William Henry, MP (1825-1891)
- Smith, William Hodson (1856-1943; e.m. 1880)
- Snowden, Philip, MP, 1st Viscount (1864-1937)
- South-Eastern England (Surrey, Kent, Sussex, Hants, Berks)
- South Midland Counties (Middlesex, Herts, Bucks, Oxon, Northants, Hunts, Beds, Cambs)
- South Petherton, Som.
- South-Western Counties (Cornwall, Devon, Somerset, Dorset, Wilts)
- Southampton
- Sowton, Stanley (1875-1958)
- Spencer, Arthur Marshman (1886-1943; e.m. 1911)
- Squance, Thomas Hall (1790-1868; e.m. 1812)
- Sri Lanka (formerly Ceylon)
- Stewart, Robert Michael Maitland, MP, Baron Stewart of Fulham (1906-1990)
- Stonehouse, George (1714-1793)
- Storey, Dr Christopher (1908-1994)
- Storey, Winship (1891-1950)
- Strawson, Dr William (1916-2015; e.m.1942)
- Sugden, Dr Edward Holdsworth (1854-1935; e.m. 1874)
- Sweetman, Dr James Windrow (1891-1966; e.m. 1916)
- Swift, Wesley Frank (1900-1961; e.m. 1924)
- Tatham, Emma (1829-1855)
- Taylor, Jeremy (1613-1667)
- Telford, John (1851-1936; e.m. 1873)
- Thatcher, Margaret Hilda, née Roberts, Baroness Thatcher of Kesteven (1925-2013)
- Thomas, Gilbert Oliver (1891-1978)
- Thompson, Edward John (1886-1946; e.m. 1910)
- Thompson, Thomas, MP (1754-1828)
- Thomson, George (1698(?)-1782)
- Thoresby (or Thursby), Francis (fl. 1790s)
- Tindall, Edwin Hern (fl. 1858-1883; e.m. 1858)