|
[Bartlett Dam] |
Leatham |
1960 |
|
[biographical information] |
|
|
|
[biographical information] |
|
|
|
[Biographical sketches and original documents of the first Powell expedition of 1869] |
|
1947 |
|
[Biographical sketches and original documents of the second Powell Expedition of 1871-72] |
|
1947 |
|
[Biographical sketches and original documents of the second Powell Expedition of 1871-72] |
|
1949 |
|
[Biographical sketch] |
|
1929 |
