Other breeds which played a role in the development of the Saddlebred in the 19th century include the Morgan, Standardbred and Hackney. The Canadian Pacer had a particularly significant impact. The breed, originally of French origin, was also influential in the development of the Standardbred and Tennessee Walking Horse. The most influential Canadian Pacer on Saddlebred lines was Tom Hall, a blue roan stallion foaled in 1806. After being imported to the United States from Canada, he was registered as an American Saddlebred and became the foundation stallion of several Saddlebred lines.