apprentice to James Hall, preparator of fossils with Charles E. Beecher
United States of America
J. S. Newberry et al.: Geological Survey of Illinois & Paleontology (1866-90) ; Newton Horace Winchell: Geol. & Nat. History Survey Minnesota (1895) ; O. C. Marsh ;
Cincinnati Society of Natural History; US Geological Survey, Yale University; Peabody Museum Natural History; preparator of Charles E. Beecher at Yale
draftsman P. Roetter ; draftsman F. B. Meek ; draftsman J. S. Newberry ; draftsman C. K. Worthen ; draftsman L. Lesquereux ; draftsman O. H. St. John ; draftsman E. O. Ulrich ; draftsman A. J. Ibbot son ; draftsman Anton Schönborn ; draftsman M. Springer ; draftsman D. W. Thomas ; ->Edward O. Ulrich ; Western Engraving Co., Chicago ;
geological and paleontological drawing and lithography
