| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 1926 |
 | Alexandria Building | 1910-11-09 | Image | dha_scp |
| 1927 |
 | Alexis Kelner, Salt Lake City, Utah: an interview by Elizabeth Shuput [13 October and 7 November 2006] | 2006-10-13; 2006-11-07 | Text | uum_elc |
| 1928 |
 | Alexis Kelner, Salt Lake City, Utah: an interview by Erik Solberg, 25 June 2007 | 2007-06-25 | Text | uum_elc |
| 1929 |
 | Alf Engen | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939 | Image | uum_map_usa |
| 1930 |
 | Alf Engen teaching skiing lessons. | 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959 | Image | uum_map_usa |
| 1931 |
 | Alf Engen, Lois Linkletter, Art Linkletter | 1965; 1966; 1967; 1968; 1969; 1970 | Image | uum_map_usa |
| 1932 |
 | Alf Engen, Lois Linkletter, Art Linkletter | 1965; 1966; 1967; 1968; 1969; 1970 | uum_map_usa | |
| 1933 |
 | Alfalfa harvesting | Image/StillImage | uaida_main | |
| 1934 |
 | Alfalfa leaves showing comparatively light injury from sulphur dioxide | 1920 | Image | mc_mcm |
| 1935 |
 | Alfalfa leaves showing comparatively light injury from sulphur dioxide | 1920 | Image | mc_mcm |
| 1936 |
 | Alfalfa P.1 | 1935 | Image | dha_cp |
| 1937 |
 | Alfalfa P.2 | 1935 | Image | dha_cp |
| 1938 |
 | Alfalfa P.3 | 1974 | Image | dha_cp |
| 1939 |
 | Alfalfa P.4 | Image | dha_cp | |
| 1940 |
 | Alfalfa Stacks Belonging to Peter Clegg | 1915-07-10 | Image | dha_scp |
| 1941 |
 | Alfigo Baca and Navajo Indians, San Juan County, Utah | 1920; 1921; 1922 | Image | uum_map |
| 1942 |
 | Alford Brothers Co. P.1 | 1911-08-11 | Image/StillImage | dha_cp |
| 1943 |
 | Alford Brothers Company | 1911-08-11 | Image | dha_scp |
| 1944 |
 | Alfred Cumming | Image | dha_cp | |
| 1945 |
 | Alfred Lambourne | Image | dha_cp | |
| 1946 |
 | Alfred Lambourne | Image | dha_cp | |
| 1947 |
 | Alfred Lambourne | Image | dha_cp | |
| 1948 |
 | Alfred Lambourne | Image | dha_cp | |
| 1949 |
 | Alfred Lambourne | Image | dha_cp | |
| 1950 |
 | Alfred Lambourne | Image | dha_cp |