- ArchiefA1 - Seager Wheeler and Family fonds
- ReeksL1 - Letters
- DeelreeksL1.1 - Institutions
- BestanddeelLF2 - Government
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- Stuk2021-L-329 - P.R. Cowan (2) (Mar 16)
- Stuk2021-L-330 - P.R. Cowan (Mar 16)
- Stuk2021-L-333 - P.R. Cowan (Mar 23)
- Stuk2021-L-450 - Dominion of Canada Experimental Farms, P.R. Cowan (Feb 26)
- Stuk2021-L-386 - S.E. Clarke (April 16)
- Stuk2021-L-482 - The Crop Testing Plan, H.G.L. Strange (Sept 4)
- Stuk2021-L-521 - The Crop Testing Plan, H.G.L Strange (April 9)
- Stuk2021-L-455 - Dominion of Canada Experimental Farms, W.G. McGregor (Mar 9)
- Stuk2021-L-385 - R. Weir
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