Painter, printmaker and notable illustrator, born in London. He studied at St John's Wood Schools of Art, Royal College of Art and Royal Academy Schools. Exhibited extensively at Fine art Society and RI, also at Cooling Galleries, ROI and Walker Art Gallery, Liverpool. From the 1920s Baumer concentrated on his illustrative work. He drew for many magazines, including Jerome K Jerome's The Idler, Pick-Me-Up, Punch and The strand Magazine. Authors of books illustrated ranged from Ian Hay to Washington Irving and Mrs Molesworth. He was a light social commentator in his contemporary drawings, which have a fizzy charm. Arts club member. Lived at Henley-on-Thames.