On the Hill (San Francisco) | | 1931 | | | Third Prize |
On the Lakeside | | 1939 | | | |
On the Mediterrean | | 1926 | | | |
On the Midway | | 1934 | | | Second Prize |
On the Pond | | 1937 | | | |
On the Quay | | 1922 | | | |
On the Road to the Fiesta | | 1927 | | | |
On the Road to Woodstock | | 1930 | | | |
On the St. Lawrence | | 1929 | | | Honorable Mention |
On the Top | | 1935 | | | |
On the Waterfront | | 1934 | | | |
On Top of Cedar Point | | 1939 | | | First Prize |
Ondarroa | | 1933 | | | |
One Morning | | 1934 | | | |
One of Tillie's Folks | | 1935 | | | |
Onions | | 1936 | | | |
Onions | | 1931 | | | |
Ontario Street Fire | | 1930 | | | |
Ontario Street Fire | | 1932 | | | Second Prize |
Open House | | 1934 | | | |
Opera House - Central City | | 1934 | | | |
Ora Coltman | | 1935 | | | |
Orange and Green | | 1928 | | | |
Orchid | | 1930 | | | |
Orchids | | 1935 | | | |
Orchids | | 1934 | | | |
Ore Boat in St. Mary's River | | 1938 | | | |
Ore Docks | | 1935 | | | |
Ore Docks, At Foot of Jefferson Ave. | | 1923 | | | Third Prize |
Orestes and Pylades | | 1929 | | | Honorable Mention |
Organ Pipes of Cleveland's Industry | | 1935 | | | Honorable Mention |
Oriental Poppy | | 1937 | | | |
Orvieto | | 1933 | | | |
Otis Steel | | 1936 | | | |
Otto | | 1931 | | | |
Our Pet | | 1937 | | | |
Our Tower in Chromium | | 1932 | | | |
Out Door Note | | 1928 | | | |
Out to Sea | | 1938 | | | |
Out to Sea | | 1926 | | | |
Outpost | | 1938 | | | Second Prize |
Outskirts, Florence, Italy | | 1936 | | | Third Prize |
Oval Brass Box | | 1920 | | | |
Over Mantel Ornament | | 1926 | | | |
Over the Dunes, Cape Cod, Massachusetts | | 1919 | | | |
Over the Range | | 1933 | | | |
Over the River | | 1935 | | | |
Ox Stalls | | 1926 | | | Third Prize |
Oxidized brass hand mirror, ivory handle, carved ivory panel, and carved brass ornament | | 1928 | | | |
Oxodized brass cigarette box with wistaria enamel panel | | 1928 | | | |