Joyce Little, Stained Glass Marks and Monograms (London: National Association of Decorative and Fine Art Societies, 2002), p. 95.
| The Virgin Mary artist: Karl Parsons 1909 Church of St Mary the Virgin, Tenby, Pembrokeshire north wall of the sanctuary | |
| Receiving the Crown of Life artist: Karl Parsons 1917 Church of St Mary the Virgin, Tenby, Pembrokeshire north wall of the north aisle | |
| Christ in Majesty with Scenes and Figures from the Old and New Testaments artist: Karl Parsons 1927 Church of All Saints, Porthcawl, Bridgend east wall of the sanctuary | |
| The Good Samaritan architect: Karl Parsons 1929 Church of St James, Pyle, Bridgend south wall |