| BRITISH COLUMBIA ARTISTS |
He exhibited artwork at the Vancouver Exhibition in 1930, representing the Vancouver Sketch Club.
He submitted work to the 1935, and exhibited work in the 1945, 1946, and 1948 B.C. Artists' exhibitions at the Vancouver Art Gallery.
Gladwin died in Vancouver in 1960 at the age of 85. He was survived by his wife Edith Mary Ellington.
GROUP EXHIBITIONS
| DATE | EXHIBITION | ARTWORK |
| 1930 Aug. 6 - 16 | VanExh Oil Paintings & Water-colours | Lost Lagoon |
| 1935 Sept. 20 - Oct. 15 | VAG B.C. Artists 4th Annual | Banff Highway |
| 1945 Sept. 22 - Oct. 21 | VAG B.C. Artists 14th Annual | Now the Day is Over |
| Cheam in October | ||
| 1946 Sept. 21 - Oct. 13 | VAG B.C. Artists 15th Annual | Oasis on the Thompson |
| 1948 Sept. 18 - Oct. 10 | VAG B.C. Artists 17th Annual | Mt. Cheam at Jones Lake, B.C. |