December 4, 1936 - graduates from Latvian Aeroclub flight school, in the second graduating class of sport fliers.
His instructors were P.Sotnieks, T.Susters and J.Abolins.
August 27, 1939 - participated in the Aviation Festival at Auce (actually held in the Vecauce fields).
1943 - 1944 (German occupation) - Grube serves as an instructor at the Liepaja-Grobini flight school,
preparing latvian aviators for the Luftwaffe Legion Lettland. Rank: Lieutenant.
After the war he emigrated to England, later to Canada.
February 12, 1979 - Died, in Toronto, Canada
Sources
- Bruvelis, Edvins Latvijas Aviacijas Vesture
- Daugavas Vanagu Menesraksts, 1979 No.1 pg. 35
- Hazners & Berzins (ed) Latviesu Karavirs Otra Pasaulse Kara Laika Vol.7 pg.17
- Kadets No.8 (1979)