In 1806 Hammuda ibn Ali, the Bey of Tunis, presented the stallion Black Sultan and two Barb mares to President Jefferson, the three horses subsequently being sold at auction with both mares in foal to Black Sultan. One Barb mare went to Louisiana and produced Beau Laquaise (c 1807), and nothing further is known about either of these horses

The other Barb mare went to Jefferson' son-in-law and fellow Congress member John Eppes. She was sent to Virginia where in around 1807 she foaled Sultana. This Barb mare was then bred to the imported stallion Citizen and produced a foal in around 1808

that would become known as The Citizen Mare, the taproot of American Family A30, which, as she was a daughter of Jefferson's Barb Mare, is a subsidiary branch of Family A25 and Family A30 has therefore been incorporated into Family A25 on Pedigree Query

American Family A25/A30, which is still extant, has produced a number of high class horses, notably English Lady (1890 Kentucky Oaks)