“ His father was a prosperous business man, and had him prepared for college in the best schools of Cincinnati. He was graduated at Miami in 1835, studied law in Cincinnati, under the direction of Nathaniel Pendleton and Stephen Fales, and practiced in Columbus until 1848, in which year he was chosen to the state legislature. About this period Mr. Dennison became interested in banking and in railroad affairs, and was president of the Exchange bank and president of the Columbus and Xenia railroad company. ”