Which breed has a registry that was formalized in 1962?

The American Paint Horse has a registry that was formalized in 1962, marking a significant moment in the history of horse breeding and preservation. This breed is known for its distinctive coat patterns that involve large patches of white and dark colors. The establishment of the American Paint Horse Association (APHA) in 1962 was pivotal as it provided a formal structure for the recognition and registration of horses that exhibited the unique coloring characteristic of the breed. This organization has played a crucial role in promoting and maintaining the breed's standards, ensuring that the lineage and qualities of the American Paint Horse are preserved for future generations.

The other breeds mentioned do not have a registry that was formalized in the same year. The American Cream Draft has a different timeline, as does the Appaloosa, with its registries being established earlier. Similarly, the American Standardbred has its own distinct heritage and was formalized through different organizational efforts. Thus, the American Paint Horse stands out for its specific formal registry initiation in 1962, which aligns accurately with the question asked.