Name
- Smith, Henry, Attaché at Naples1
- Smith, William, of Add MS 355361
- Smyth, Robert, of Add MS 355051
- Southwell, Edward, 17th Baron de Clifford1
- Southwell, Robert Henry, Lieutenant-Colonel1
- Spencer, Charles, 2nd Duke of Marlborough, Master-General of the Ordnance1
- Spencer, Henry John, diplomatist1
- Spencer, Margaret Georgiana, wife of John, 1st Earl Spencer1
- Springsguth1
- St Paul, Horace, Sec of Embassy in Paris1
- Stewart, Alexander, of Add MS 355091
- Stewart, John, 7th Earl of Galloway1
- Stopford, James, 2nd Earl of Courtown1
- Storer, Anthony, Envoy at Paris1
- Stratford, Edward Augustus, 2nd Earl of Aldborough1
- Straton, Alexander, afterwards Secretary to the Embassies at Vienna and Constantinople1
- Stuart, Andrew, of Add MS 354461
- Stuart, Cosmo1
- Stuart, John, Colonel1
- Sutherland, Elizabeth, widow of Eric Sutherland1