Still Life with Cactus on Table, 1928
oil,
signed lower left
20 1/2" x 30"
Reference: 10621
Spring in a Mining Town (Colorado)
oil,
signed lower left
14 x 18 inches
Reference: 21228
Morning Train (Soldier's Farewell), 1943
lithograph,
pencil signed lower right
9 ½ x 13 ¼ inches
Reference: 19407

pastel,
signed and dated lower right
26 x 31 ½ inches
Reference: 19350
Oil and the Old West, circa 1945
graphite,
signed lower right, titled verso
11 ¼ x 21 ¼ inches
Reference: 24785
The Way War First Comes, 1940
watercolor,
signed and dated lower right
15 ½ x 25 inches
Reference: 12904
Rocky Gorge, circa 1955
watercolor,
signed lower left, titled verso
19 ½ x 13 inches
Reference: 19070

oil,
signed lower right, titled verso
25 x 20 inches
Reference: 26131
Untitled (Colorado Mountain Town), circa 1950
oil,
signed lower right
24 x 18 inches
Reference: 24849
Storm Clouds Over Santa Fe, circa 1940
oil,
signed lower right, titled verso
15 ¾ x 19 ? inches
Reference: 15510
The Plaza Taos, 1928
etching,
signed and dated lower right, titled lower left
5 x 7 inches
Reference: 17475
Hopi Point, Grand Canyon, Arizona, circa 1925
oil,
signed lower right "N.H. Knopf", titled verso
12 x 16 inches
Reference: 17965
Home Economics (Cornell University), circa 1937
oil,
attributed
28 ½ x 35 ¾ inches
Reference: 25278