Jessie Pepper, by Mambrino Chief-Sidi Hamet, was foaled in 1865 and trained and driven in races in Kentucky. She showed speed and could trot in better than 2:40. Her offspring were even better, with Iona posting a 2:22 and Alpha a 2:23 1/2. The Jessie Pepper line leads all others in production of 2:00 speed.
Published in the Harness Racing Museum's 1994 book, The Immortals