Howard Blackwell (Q106477313)
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English mining engineer
- John Howard Blackwell
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Howard Blackwell |
English mining engineer |
|
Statements
1 reference
12 April 2021
3 May 2022
1 reference
1866
1 reference
12 April 2021
3 May 2022
12 February 1866Gregorian
1 reference
12 April 2021