Tidd imported Ch. Bowhit Pivot for his breeding lines in 1935, registering him with the AKC as Sierra Bowhit Pivot. In addition to his British titles, he became the first Corgi to be awarded Champion status in the US, and the first such dog to be named Best of Group at a conformation show in the United States. A month after those achievements, Little Madam repeated his victories. The Pembroke Welsh Corgi club was formed in 1937, and the first show was held at Geraldine Rockefeller Dodge's Giralda Farms in New Jersey. Following the Second World War, there were imports from the United Kingdom, including Rozavel Uncle Sam which dominated the show circuit for Corgis. In 1949, he became the first Pembroke winner of Best in Show at an open conformation show in the United States. By 1998, the Pembroke Welsh Corgi had become the 37th most popular breed of dog in the United States.