Recognized by, and adored for, their size, miniature horses are most readily accepted as being bred down from Shetland stock over successive centuries. This continued into the early 20th century, as exemplified by the fact that Teddy Roosevelt's son Quentin had a 39 inch Shetland name Algonquin, which he rode on the White House lawn. One of the more popular miniature horse breeds is the Falabella, which descended from a lone stallion in Argentina with a "dwarf" gene. Their popularity skyrocketed in the U.S. in 1962 when Robert Kennedy put a trio of them under the Christmas Tree for Caroline and John-John. If you are looking for miniature horses for sale, let our classified ads help shrink your search!