Sonman Mine explosion

#	Item
1	The Portage Area Historical Society[removed] Add to Reading List Source URL: www.portagepa.us Language: English - Date: 2014-01-24 11:26:22 Northwest Indiana Portage Indiana Portage Wisconsin Sonman Mine explosion Portage Kent Ohio Johnstown Pennsylvania Geography of Indiana Geography of the United States Geography of Pennsylvania Chicago metropolitan area
2	The Portage Area Historical Society[removed] Add to Reading List Source URL: www.portagepa.us Language: English - Date: 2010-12-09 14:34:39 Northwest Indiana Portage Indiana Portage Allegheny Portage Railroad Onekama Michigan Sonman Mine explosion Pennsylvania Geography of the United States Chicago metropolitan area
3	The Portage Area Historical Society[removed] Add to Reading List Source URL: www.portagepa.us Language: English - Date: 2010-12-09 14:36:47 Sonman Mine explosion Portage Indiana Portage Wisconsin Allegheny Portage Railroad Portage Pennsylvania Geography of the United States Cambria County Pennsylvania