- CollectionYJ - Howard Jackson Collection
- Series4 - Album 4(draft)
- FileYJ0469 - No 11, Service Flying Training School Yorkton, Saskatchewan
- ItemA - No 11, Service Flying Training School Yorkton history - Page 1
- ItemB - No 11, Service Flying Training School Yorkton history - Page 2
- ItemC - No 11, Service Flying Training School Yorkton history - Page 3
- ItemD - No 11, Service Flying Training School Yorkton history - Page 4
- ItemE - No 11, Service Flying Training School Yorkton history - Page 5