Archival objects in this container: Field Notebook property of L. E. Tyson, Blair, Nebraska, undated Field Notebook, undated Field Notebook "Gutters and Sidewalks", undated Field Notebook "L. E. Tyson Dept. of Roads and Irrigation, Norfolk, Nebraska", undated Manual of Instructions for Surveying Mineral Lands of the United States, 1909 Union Pacific System Rules and Instructions of the Maintenance of the Way Department, 1923 Chemists' Pocket Manual, undated
