- CollectionYJ - Howard Jackson Collection
- Série organique4 - Album 4(Ébauche)
- DossierYJ0469 - No 11, Service Flying Training School Yorkton, Saskatchewan
- PièceA - No 11, Service Flying Training School Yorkton history - Page 1
- PièceB - No 11, Service Flying Training School Yorkton history - Page 2
- PièceC - No 11, Service Flying Training School Yorkton history - Page 3
- PièceD - No 11, Service Flying Training School Yorkton history - Page 4
- PièceE - No 11, Service Flying Training School Yorkton history - Page 5