The Guild was formed from a nucleus drawn from two separate groups, the St George's Art Society, a group of architects who had seen service in the offices of Norman Shaw, including Ernest Newton, Mervyn Macartney, Reginald Barratt, Edwin Hardy, Lethaby and Edward Schroeder Prior, and the Fifteen, founded by the designer and writer Lewis Day and the illustrator and designer Walter Crane. Prior wrote the prospectus for the Guild. It initially met in Newton's chambers by St George's Church, Bloomsbury.