Hetty Orrilla Ballard (Q84057098)
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American geologist
- Hetty O. Ballard
- Hetty Ballard
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Hetty Orrilla Ballard |
American geologist |
|
Statements
18 June 1868Gregorian
0 references
20 December 1897Gregorian
1 reference
1 reference
1 reference