Dismorr met Wyndham Lewis in 1913 and by 1914 had become a member of the Rebel Art Centre. She maintained a studio in the Kings Road, Chelsea, London, as well as taking frequent trips to France. Dismorr was a signatory to the Vorticist manifesto published in the first issue of their literary magazine, Blast in 1914, and also contributed illustrations and a written piece, Monologue, to the second issue in 1915. She shared the group's depiction of the dynamics of the machine and their desire to challenge the public's conservative views on art but little of her work from this period survives. The four works she contributed to the Vorticist exhibition in 1915 are now thought to be lost, as is the original of The Engine which was reproduced in an edition of Blast. Both the Victoria and Albert Museum and the Tate hold one example each of Dismorr's work from this period and the collector John Quinn displayed several examples in New York in December 1916. Dismorr exhibited with the Vorticists again in New York in January 1917 at the Penguin Club.
