She was a member of the Women's Social and Political Union (WSPU) for whom she campaigned for which she was imprisoned in Holloway Prison in 1912.
[1] The 1911 Census lists him as a General Merchant and Investment Broker and Katie Edith as an artist, she having studied at the Slade School of Fine Art from 1900 to 1904 under Frederick Brown and Henry Tonks.
The New York-based Davis & Langdale Company lists an ink and brush painting titled ‘Gliddon’ by the artist Walter Sickert from about 1912 which almost certainly portrays Katie Gliddon as she knew Sickert's sister Helena Swanwick, who was also an activist for women's suffrage.
[8] Expecting to be imprisoned for her actions Gliddon had sewn pencils into the collar of her coat and used these to write and illustrate a secret prison diary in the margins of her copy of The Poetical Works of Percy Bysshe Shelley.
[9] After World War I Gliddon became a successful watercolour artist specialising in painting flowers,[10] exhibiting at the Royal Academy of Arts, the New English Art Club, the Society of Women Artists and the Royal Society of Painters in Water Colours among other galleries.