Hartzell, Samuel Director Colorado. agricultural . society . Park county. RAi.News.Mar.7,1868 p.4 c.3 Letter advertised, Denver. R.M.News.Apr.13,1868 p.1 c.5 Director 'o10. agric. society, Denver. R.M.News.AuF.19,18r8 p.4 c.4 Attends agric. society meeting, Denver. R.M.News.Mar.7,1870 p.4 c.2 Park County, on committee agric. society, Colo. R.M.News. Feb.26,1870 p.4 c.2