John R. Hoffman, Assistant Mining Engineer (Pottsville), Reports
name: label: Collection Creator
content: Philadelphia and Reading Coal and Iron Company
setName: label: See more items in
content: Philadelphia and Reading Coal and Iron Company Records
label: See more items in
content: Philadelphia and Reading Coal and Iron Company Records / Series 12: John R. Hoffman and Roland C. Luther, Pottsville, Pennsylvania
unitdate: label: Date
content: 1883 June-1898 June
container: label: Container
content: Box 46
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials