Penry Williams: Liste d'œuvres
- Merthyr Riots, 1816
- Crawshay's Cyfarthfa Ironworks, 1817
- Waterfall in the Neath Valley, 1819
- Ysgwd or Scwd Fall, Neath Valley, 1819
- Eionon Garn on the Perddyn or Ysgwd or Scwd Fall, Neath Valley, 1819
- Sgwd yr Henryd, Vale of Neath, 1819
- Sgwd Gwladys, Vale of Neath, 1819
- South Wales Industrial Landscape, 1825
- Cyfarthfa Ironworks Interior at Night, 1825
- Santa Maria Maggiore seen from the Gardens, 1827
- Tiber with the Temple of Hercules Victor, Santa Maria in Cosmedin and the Ponte Rotto seen from the Convent of San Barto, 1828
- A Distant View of Saint Peter's, Rome, 1828
- Painting of a young boy riding a pony, 1829
- Swansea, 1830
- The Shrine, 1830
- Italian Playmates, 1830
- Pozzuoli, 1831
- The Italian Family: Ferry on the River Ninfa, 1831
- The Procession to the Christening in L'Ariccia, 1831
- Procession to the Christening near Araccia, 1833
- Subiaco, 1834
- Pilgrims Reposing at a Cross, 1835
- The Festa of the Madonna dell'Arco at Naples, 1836
- The shrine, 1836
- Landscape with Figures and a Ruin, 1837
- Italian Girl with Tambourine, 1837
- Mediterranean Bay Seen through an Arch, 1839
- Italian Peasant Children, 1841
- Roman Aqueduct in the Campagna, 1841
- A Mother and Child beneath an Arbour at Evening, 1849
- The Shrine, 1849
- The grape harvest, 1852
- Mass for the Reapers, 1858
- Neapolitan Peasants at a Fountain, 1859
- On the well, 1865
- A View of Rome from the Tiber, with the Ponte Rotto and the Temple of Vesta, 1870
- Tivoli, 1874
- Labourers, ?
- Mother and Child, ?
- Temple of Hercules Victor, The Piazza di Bocca della Verita and the Church of Santa Maria in Cosmedin, ?
- Fisher Boys, ?
- Peasant Girls – Sorrento, ?
- The Procession to the Christening, ?
- The Tambourine, ?
- Italian Goatherds, ?
- A Goatherd on the Roman Campagna, ?
- Italian Peasants, ?
- Repose, ?
- Two Girls with a Tambourine, ?
- Bridge over the River Taff, ?
- The Temple of Vesta, Rome, ?
- Main entrance to Cyfarthfa Castle, ?
- Spanish Lady, ?
- Italian Peasants, ?
- Italian Peasants, ?
- Moonlit landscape, ?
- Primitive Study of Guinea Pigs, ?
- Two Roman ladies and their children, ?
- View from Gwaelod-y-Garth, ?