| BRITISH COLUMBIA ARTISTS |
In 1921 she was selected as one of 14 charter members of the Edmonton Art Club, and was later named an Honorary member of the group.
She exhibited with the Vancouver Sketch Club in 1923 and 1924, in exhibitions held at the club rooms at 342 West Pender Street.
She was listed as a member of the B.C. Society of Fine Arts in the exhibition catalogues from 1924 to 1926.
Also Vancouver Exhibition 1924, B.C. Society of Fine Arts 1924 and 1925, and Island Arts and Crafts Society 1926. Her address was in Victoria. Additional information lists her exhibiting with the Island Arts and Crafts Society from 1926 to 1930.
She exhibited in the Seattle Art Museum's annual Northwest Artists exhibitions in 1927 and 1930.
The City Directories for 1929 to 1931 list her as residing at 2321 Windsor in Victoria. She is not listed in 1928 or 1932.
BC Vital Statistics on-line did not provide any information on the artist as of November 2021.
GROUP EXHIBITIONS
| DATE | EXHIBITION | ARTWORK |
| 1923 December | Sketch Club Semi-Annual Exhibition | False Creek |
| (Durham Cathedral) | ||
| 1924 Feb. 2 | Sketch Club Monthly Exhibition | An Old Mission |
| 1924 May 3 - 17 | BCSFA 16th Annual Exhibition | Harbour Lights |
| Old Mission, California (Aquatint) | ||
| Canadian Fisheries Wharf, Etching | ||
| Morning Sunshine, Aquatint | ||
| Pleasure Craft, Etching | ||
| 1924 Aug. 9 - 16 | Vancouver Exhibition Annual Exhibition | Californian Mountains |
| Landscape | ||
| The Wharf | ||
| 1930 Aug. 22 - Sept. 6 | CNE Graphic Arts | Lake O'Hara (etching) |
| The City Gate (aquatint) |
CITY & PROVINCIAL DIRECTORIES 1927 Victoria (refer to DIR)
SEATTLE ART MUSEUM - NORTHWEST ARTISTS EXHIBITIONS 1914 - 1975
Refer to NWA BC artists by exhibition
Refer to NWAA BC artists alphabetically
https://vad.redcross.org.uk/en/Card?fname=Theodora&sname=&id=1034&first=true
"Again Miss Theo Adamson, in an aquatint, "An Old Mission", displayed her sure and
finished touch in this class of work"
From "Sketch Club Exhibit Held"
Vancouver Daily World, February 4 1924