Name
- Simwnt Vychan1
- Sion Cent1
- Sion Phylip1
- Sion Tudyr1
- Smart, Christopher, of Add MS 149361
- Sovereigns of England1
- Taliesin1
- Tudyr Aled1
- William Cynwal, of Add MS 148661
- William Cynwal, of Add MS 149351
- Williams, Evan, of Add MS 149361
- Williams, John, of Add MS 149361
- Williams, Moses, 1685-17421
- Wynne, William, Reverend1