| No Image Available | [Onfield view looking towards endzone of a football field being topdressed with peat using an Ezee Flow drop spreader, 1952] | 1952 05 17 | W577 |
| | Damaged Fairway Grabgrass; Warloonda Des Moines Apr. 1940 | 4/1940 | 343 |
| | Crab Grass Injury to Lawn; Des Moines Ia. Apr. 1940 | 04/1940 | 344 |
| | Grass Killed Terrace Crab Grass; Des Moines Ia. Apr. 8, 1940 | 04/08/1940 | 345 |
| | Crab Grass Damage Terrace on Lawn; Des Moines Ia. Apr. 1940 | 04/1940 | 346 |
| | Crabgrass injury to lawn (Des Moines, IA - April 8, 1940) | 04/18/1940 | 347 |
| | From Road, Caretaker Home Pioneer Park; Des Moines Ia. Apr. 8, 1940 | 04/08/1940 | 348 |
| | Close-up: Caretaker Home Pioneer Park; Des Moines Ia. Apr. 8, 1940 | 04/08/1940 | 349 |
| | 2-4D Kills Dandelions #1 Fairway Prof Lautz shows Joe Be; Ames G. C. Ames Ia 9-11-45 | 09/11/1945 | 1285 |
| | Weed control 2,4-D #1 Fairway; Ames G. & C. club Iowa 9-11-45 | 09/11/1945 | 1286 |
| | Weeds after 2m4-D Close-up #1 Fairway; Ames G. & C. club Iowa 9-11-45 | 09/11/1945 | 1287 |
| | Weeds - 2,4-D Close-up #1 Fairway; Ames G. & C. Club 9-11-45 | 09/11/1945 | 1288 |
| | Lambert Demonstrates His Stolan Cutter; Davenport Mun, G. C. Iowa 9-12-46 | 09/12/1946 | 1335 |
| | Broom On Power Mower For Brushing Bent Green; Muni Course Davenport Ia. Fall 1949 | 1949 | 2007 |
| | Ho-made Power Brush For Greens; Muni Course Davenport Ia. 1949 | 1949 | 2008 |
| | Out of Bounds Sign City Course; Davenport Ia. Fall 1949 | 1949 | 2009 |
| | Ho-made Slicer For Greens; Muni Course Davenport, Ia. Fall 1949 | 1949 | 2010 |
| | Operating Slicer For Greens Ho-made; Muni Course Davenport Ia. Fall 1949 | 1949 | 2011 |
| | Blue Grass Turf Stadium; Iowa State Ames Fall, 1950 | 1950 | 2318 |
| | Blue Grass Turf Stadium; Iowa State Ames Fall, 1950 | 1950 | 2319 |
| | Poor Turf on #1 Tee Poa Annua; Keokuk Ia. 4/7/52 | 04/07/1952 | 2962 |
| | Blue Grass Lawn Crabgrass Year Before; Keokuk Ia. 4/7/52 | 04/07/1952 | 2963 |
| | Quack Grass Clump In Lawn; Keokuk Ia. 4/7/52 | 04/07/1952 | 2964 |
| | Quack Grass Clump In Lawn; Keokuk Ia 4/7/52 | 04/07/1952 | 2965 |
| | Eroded Hillside F. Before Seeding; Keokuk C. C. Ia. 4/7/52 | 04/07/1952 | 2966 |