Name
- Smart, Christopher, of Add MS 149361
- Society of Antiquaries, London1
- Stedman, Family1
- Theodere, Richard Owen1
- Thomas Alloth1
- Thomas Davies Baselden1
- Thomas Derllys1
- Thomas Glyn Llifon1
- Thomas Gwynedd1
- Thomas Jenkin ab Jevan1
- Thomas Kelli1
- Thomas Lleyn1
- Thomas Llwyd Jevaf1
- Thomas Llyweluyn1
- Thomas Llywelyn Dio ab Hywel1
- Thomas William Hywel1
- Thomas ab Edward1
- Thomas ab Jevan ab Rhys1
- Thomas ab Rhys1
- Thomas ab Robert1