- FondsA1 - Seager Wheeler and Family fonds
- Série organiqueP1 - Photographs
- DossierP1.5 - Miscellaneous
- 213 en plus...
- Pièce2021-P-214 - Selected Marquis Wheat, Seager Wheeler
- Pièce2021-P-215 - Field of Wheat Destroyed by Hail Storm, Seager Wheeler
- Pièce2021-P-216 - Marquis Wheat
- Pièce2021-P-217 - Marquis Wheat in Stook, Seager Wheeler
- Pièce2021-P-218 - Selected Marquis Wheat Plot, Seager Wheeler
- Pièce2021-P-219 - L.H. Newman, Unclear Label
- Pièce2021-P-220 - Seager Wheeler Fields
- Pièce2021-P-221 - Marquis Wheat Elite Seed
- Pièce2021-P-222 - Marquis Wheat in Stook, Seager Wheeler
- 161 en plus...