- St Andrew’s Hospital, see Northampton Asylum
- St Guthlac’s Stone 1
- St Ives 1, 2
- St Neot’s 1n.12
- St Paul’s, London 1, 2
- Sandys, George 1, 2n.22
- Savage, John 1, 2n.92, 3n.109
- Savage, Richard 1, 2n.54
- Sawney Bean 1, 2n.69
- Scientific Receptacle 1, 2, 3, 4, 5n.92, 6n.192, 7, 8n.271
- Scotch Rogue, The 1, 2n.41
- Scott, John [editor of the London Magazine] 1, 2n.57
- Scott, John [Quaker poet] 1, 2n.185
- Scott, Sir Walter 1, 2, 3, 4, 5n.136, 6n.59
- Seaton, John [Glinton schoolmaster] 1, 2n.7
- Sefton, Mr and Mrs Samuel 1, 2n.1
- Sell, Betty 1, 2, 3n.135
- Seven Sleepers, The 1, 2, 3n.26, 4n.69
- Shakespeare, William 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11n.50, 12n.248, 13n.99
- Sharp, Sam [Helpston neighbour] 1, 2n.118
- Sharp, William 1, 2, 3, 4n.147, 5
- Shefford, Bedfordshire 1, 2, 3n.13
- Shelton, George [stone mason] 1
- Sherwill, Captain Markham E. 1, 2, 3n.149
- Simon’s Wood 1, 2
- Simpson, Frank and Susan 1, 2n.195
- Simpson, Ned 1, 2n.160
- Smith, Charlotte 1, 2n.132
- Smith [gypsey family] 1, 2, 3, 4, 5, 6, 7n.92, 8n.10
- Snow, Mr and Mrs Henry [Helpston neighbours] 1
- Southey, Robert 1, 2, 3n.208, 4n.106
- Southey Wood 1
- Southorpe 1, 2, 3n.54, 4n.135
- Spencer, Earl 1, 2, 3, 4n.133
- Spenser, Edmund 1, 2, 3
- Spoke’s Mill 1
- Stamford 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16n.94, 17n.171, 18n.16
- Stamford Champion 1n.39
- Stamford Mercury 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13n.40, 14n.94, 15n.125, 16n.12117n.134, 18, 19, 20n.145, 21, 22n.177, 23, 24n.202, 25n.221, 26n.227, 27, 28n.266, 29n.276
- Stamford News 1n.34, 2n.39, 3n.49, 4n.54, 5n.78, 6, 7n.158, 8n.168, 9n.57
- Staves Acre Close 1
- Stedman, Dr [High Beach] 1
- Stephenson [Helpston] 1, 2, 3n.123, 4n.204
- Stevenage 1, 2
- Stilton 1
- Stimson, Ann, see Clare, Ann
- Stimson, Morris [Clare’s uncle] 1
- Stimson [Glinton boy] 1
- Stocks, Miss [balloonist] 1, 2n.254
- Storey, Mark 1, 2, 3
- Stratton, Nicholas 1, 2n.66
- Sturm, Christopher 1, 2n.48
- Suckling, Sir John 1
- Surfleet 1, 2, 3n.193
- Swift, Jonathan 1
- Swordy Well 1, 2, 3, 4