Boniface I, Pope - Short biographical paragraph. - http://www.saintpatrickdc.org/ss/0904.htm#boni
Boniface I - Short account of his pontificate, by Karen Rae Keck. - http://www2.evansville.edu/ecoleweb/glossary/bonifacei.html
St. Boniface I - Account of his pontificate. - http://www.cfpeople.org/Books/Pope/POPEp42.htm
Pope St. Boniface I - Consecrated the same day as the antipope Eulalius. Both were ordered to leave Rome. Eulalius took over St. John Lateran on Holy Saturday, after which the emperor refused to consider his claim. Boniface died in 422. - http://www.newadvent.org/cathen/02658a.htm