Her parents both had artistic interests and in 1888 Georgina went to the Slade School of Art where she specialised in portraits as suggested by Hubert von Herkomer.
Quickly Georgina and Marie also joined the WSPU and they transformed their studios in Holland Park into classrooms where they could train women in public speaking.
The Brackenburys' studio also became a recuperation home for prisoners recovering from force-feeding under the notorious 'Cat and Mouse" Act, prior to be re-arrested and referred to by the movement as the 'Mouse's Castle'.
[6] Georgina allegedly informed Christabel Pankhurst that at a function she had heard senior police state they had been instructed by government not to let suffragettes be treated as 'political' prisoners.
[7] When Emmeline Pankhurst died on 14 June 1928, Brackenbury was one of her pallbearers, alongside other former suffragettes her sister, Marion Wallace Dunlop, Harriet Kerr, Mildred Mansel, Kitty Marshall, Marie Naylor, Ada Wright and Barbara Wylie.
[5] The Suffragette Fellowship marked the house with a plaque stating "The Brackenbury trio were so whole-hearted and helpful during all the early strenuously years of the militant suffrage movement.
[11] An enamel plaque of the Brackenbury women including an image of a woman in a natural meadow scene, freed from chains by Ernestine Mills[6] is in the Museum of London.