Name
- Sackville, John Frederick, 3rd Duke of Dorset, diplomat and politician, 1745-17991
- Savage, William, Clerk of the Royal Institution1
- Savaresi, Andrea M., mineralogist1
- Schedel, Frances, Mrs1
- Schedel, H. L.1
- Schramm Berstens and Co, merchants, Hamburg1
- Scott, David, of Add MS 420711
- Seye, Robert, of Herne, county Kent1
- Seymour-Conway, Henry, Field-Marshal 17931
- Shaw, Edward, of Add MS 420811
- Sherlock, Martin, traveller1
- Simpson, Valentine, builder1
- Smithson, James Louis, formerly Macie; mineralogist; founder of the Smithsonian Institution1
- Society of Antiquaries, London1
- Soly, Robert, of Ash-by-Sandwich, county Kent1
- Spencer, Robert, 1st Baron Spencer1
- St Aubyn, John, 5th Baronet1
- Staines, Thomas1
- Stapleton, Abraham1
- Sullivan, John, Under-Secretary for War and Colonies, 1749-18391