Saint Ulric of Augsburg
Catholic Encyclopedia, Catholic Online, For All the Saints, Patron Saints Index
Saint Urban I
Catholic Encyclopedia, Catholic Online, For All the Saints, Popes Through the Ages, The Ecole Glossary
Saint Ursula
Catholic Encyclopedia, For All the Saints, Miniature Stories of the Saints, Patron Saints Index, The Ecole Glossary
Ugandan Martyrs
19th Century Missions in the African Interior: Bug, James Hannington and the Martyrs of Uganda, St. Charles Lwanga and Companions, The Christian Martyrs of Uganda, The Martyrs of Uganda