The Suffolk is one of the newest breeds of cat, accepted for registration in June 2014 by the GCCF. It has been created in direct response to the extreme modernisation of the UK Havana. The Havana began life in the 1950s, it is a man-made cat and started life as the ideal of Edit von Ulmann (Roofspriger). At the same time, Mrs Armitage Hargreaves (Laurentide) was considering breeding a cat with more stamina and less highly strung nature than the Siamese. Working together, Edit and Armitage began in 1951 to produce a self brown cat. Edit had a knowledge of genetics and in order to transfer the chocolate dilution to a self black cat she mated a short haired black female Maximilla Unterkatze, circa 1947 to a chocolate point Siamese Shusharo dob 1/8/1950 bred by Brian Stirling Webb. The progeny were as expected SH Blacks, a male and a female. Knowing that the recessive chocolate dilution would be present in both black cats together with the Siamese restriction factor, Edit used a sibling mating.
Unfortunately the birth was premature and the litter died but this litter had contained a brown kitten. However repeated matings of these cats eventually produced a self chocolate female. While Edit was involved in her breeding programme she heard of a Reading breeder Mrs Isobel Munro-Smith who had bred a self brown cat