Abban of Abingdon - Abingdon is named after this St. Abban (or Abben), who is said to have been baptized in 165. - http://www.saintpatrickdc.org/ss/0513.htm
Catholic Online: St. Abban - Brief (and vague) paragraph. - http://www.catholic.org/saints/saint.php?saint_id=469
Early British Kingdoms: St. Abban - Tells his story, but says that it was a legend invented to explain the name of the town Abingdon. - http://www.earlybritishkingdoms.com/bios/abban.html
St. Abban the Hermit - An Irishman who lived at Abingdon, England, before St. Patrick's lifetime. Feast day: 13 May. - http://www.newadvent.org/cathen/01007b.htm