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| Contemporary Notables of the name Demark (post 1700) | + |
| Historic Events for the Demark family | + |
Monongah Mine
- Mr. Albert Demark (b. 1882), Polish coal miner who was in mine 8 at the Monongah Mine on 6th December 1907 when it exploded and collapsed; he died 2
- Mr. Jose Demark (b. 1884), Italian coal miner who was in mine 8 at the Monongah Mine on 6th December 1907 when it exploded and collapsed; he died 3
| Related Stories | + |
| Sources | + |
- The Political Graveyard: Alphabetical Name Index. (Retrieved 2016, February 2) . Retrieved from http://politicalgraveyard.com/alpha/index.html
- Monongah Mining Disaster retrieved on 8th August 2021. Retrieved from https://usminedisasters.miningquiz.com/saxsewell/monongah.htm

