NOTES:
- The Hound Group was held for the first time at Westminster in 1930. It was made up of some breeds formerly in the Sporting Group (Afghan, Basset, Bloodhound, Beagle, American Foxhound, English Foxhounds, Greyhound, Harrier, Irish Wolfhound, Norwegian Elkhound, Otterhound, Russian Wolfhound, Saluki, Scottish Deerhound, Whippet) and one breed from the Working Group (Dachshund).
- The differentiation of Beagles Over 13″ and Beagles 15″ and Under first appears in the Westminster catalog in 1893. Both Varieties competed together, and when Group competition began in 1924, only one Beagle advanced to the Sporting Group as Best of Breed in 1924-1929, and to the Hound Group in 1930-1942. Beginning in 1943, each dog selected as Best of Variety advanced to the Hound Group.
- The Borzoi was known as the Russian Wolfhound through 1936.
- The mention of Wirehaired Dachshund first appears in the Westminster catalog in 1930, the first mention of Longhaired Dachshund in 1931. All three Varieties of Dachshund competed together, and one Dachshund advanced to the Sporting Group in 1924-1929, and to the Hound Group in 1930-1942. As of 1943, each dog selected as Best of Variety advances to the Hound Group.