Born-Digital or AnalogAnalogTranscriptBlatchley, A M Doctor, Central City, invents drilling. machine R.M.News,May 16,1868 -P.1 c.2 Doctor , stage passenger from Central City, Colorado. R.M.Ners.Oct.11,1869 p.4 c.4 R.M.Ners.Dec.6,1869 p.l.c.2 Doctor,credited with introducing new ore treat ment,Colo.R.M.Nows.Kov.30,1868.D.4 c.2 Studies Colo. geology and mineralogy. R.M.News. Nov. 30,1867 p.4 c.4 10CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
