Rafael Campo Pomar was President of El Salvador 12 February 1856 - 1 February 1858. Campo was elected president on 30 January 1856. He turned over power to his vice president, Francisco Dueñas, on 12 May of the same year, but resumed the presidency on 19 July. He was a member of the Conservative Party. Wikipedia*
On the C-SPAN Networks:
Rafael Campo has one video in the C-SPAN Video Library; the first appearance was a 2000 Forum.