WattsOSSOStudy of a Female Nude, Seated1870 · Red and black chalkSheet: 8 7/16 x 11 1/4 in. (21.5 x 28.5 cm)The Metropolitan Museum of Art
WattsOSSFStudy for a Male Figure in "Comus–The Measure" (recto); Reclining Male Nude (verso)1864 · Black chalkSheet: 11 7/16 × 8 3/4 in. (29 × 22.2 cm)The Metropolitan Museum of Art
Portrait of a Woman1851 · watercolor with gouache and graphiteSheet: 43.1 x 34.7 cm (16 15/16 x 13 11/16 in.); Secondary Support: 51 x 43 cm (20 1/16 x 16 15/16 in.)Cleveland Museum of Art
A Farm near the Sea at Margate, Kent1850 · watercolor over graphite with gum arabicsheet: 17.9 × 26.2 cm (7 1/16 × 10 5/16 in.)National Gallery of Art
WattsOSSOStudy of a Tree1848 · WatercolorSheet: 8 7/8 x 7 5/16 in. (22.5 x 18.5 cm)The Metropolitan Museum of Art
Maatschappij tot Bevordering van Landbouw en Veeteelt in Zeeland, penning uitgereikt aan L. Klaassen1848 · striking (metalworking) on bronze (metal)diameter: 5.1 cm, weight: 57.77 cmRijksmuseum
Mrs. Anne Walbanke-Childers1843 · watercolor over graphite with gouache and gum arabic on wove paper, laid down on cardsheet: 52.7 × 38 cm (20 3/4 × 14 15/16 in.) mount: 64 × 49 cm (25 3/16 × 19 5/16 in.)National Gallery of Art
Bezoek van Victoria en Albert, koning en koningin van Engeland aan het atelier van G.R. Collis, opvolger van sir Edward Thomason, penning geslagen ter ere van de hertogin van Sutherland1843 · striking (metalworking) on bronze (metal)diameter: 7.4 cm, weight: 1117 cmRijksmuseum
Portret van een zittende dame bij een doorkijk naar buiten1842 · brush on watercolor (paint), paperheight: 489 cm, width: 381 cmRijksmuseum
WattsOSCTCedar Trees in a Park1840 · Black, red and white chalk on brown paperSheet: 4 5/16 × 7 5/8 in. (10.9 × 19.4 cm)The Metropolitan Museum of Art
WattsOSSOStudy of a Plant1840 · Black chalkSheet: 7 × 4 7/16 in. (17.8 × 11.2 cm)The Metropolitan Museum of Art
WattsOSSOStudy of a Man Gazing Down1840 · Pen and brown inkSheet: 7 1/16 × 5 7/16 in. (18 × 13.8 cm)The Metropolitan Museum of Art
WattsOSLALandscape at Margate1840 · Black chalkSheet: 4 1/2 × 7 1/4 in. (11.4 × 18.4 cm)The Metropolitan Museum of Art
Tom -- Florence1838 · graphite, white gouache, and pen and brown ink on tan wove papersheet: 27.4 × 18.5 cm (10 13/16 × 7 5/16 in.) mount: 35.8 × 24.7 cm (14 1/8 × 9 3/4 in.)National Gallery of Art
Studies of Sheep in Pasture1837 · pen and brown ink on wove paperoverall: 12.1 x 18.7 cm (4 3/4 x 7 3/8 in.)National Gallery of Art
WattsOSPOPortrait of Two Children1837 · Watercolor and gouache (bodycolor) with touches of gum and gold, on yellow papersheet: 22 7/8 x 16 5/8 in. (58.1 x 42.2 cm)The Metropolitan Museum of Art
Portrait of Henry Walter. Verso: Profile of a Woman1829 · Graphite, gouache and watercolour on paper. Verso: graphite and ink on papersupport: 178 x 124 mmTate
WattsOSHAHagar and Ishmael in the Wilderness (recto); Two Portrait Studies of the Artist's Wife, and a Study of a Leg and Torso (verso)1829 · Recto: graphite, pen and black ink, brush and black wash, with white gouache (bodycolor)The Metropolitan Museum of Art
Christ and the Woman of Samaria1828 · Tempera and shell gold on mahoghanysupport: 410 x 498 mm frame: 565 x 657 x 50 mmTate
A Portrait of Welby Sherman Asleep in a Chair1828 · graphite with touches of watercolorSheet: 16 x 13.2 cm (6 5/16 x 5 3/16 in.)Cleveland Museum of Art