Born-Digital or AnalogAnalogTranscriptOsner, Joseph A Contractor, did trenching work for water system. MANUSCRIPT Mosley, E., History of Denver Water System, index v.2 p.21 Obit. of Denver railroad contractor (F 15, 1925). M Sharp, P.F. Scrapbook v.11 p.71CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng