[1] Dean attended the private schools of his native Marshall County, Mississippi, and became a farmer.

[6] He was a delegate at the 1890 Mississippi Constitutional Convention and chaired the penitentiary committee that banned convict leasing.

[1] In 1892, Dean was re-elected to the presidency pro tempore, defeating Senator John M. Simonton with a vote of 30 to 12.

[1] On January 25, 1908, Dean was elected to replace George W. Hightower, who resigned, to represent the 32nd District (also Lafayette County) in the State Senate.

[1] Their names were Russell Langston, Thomas Greenwood, Joseph James, Robert Aaron Jr., Louanner, Georgia, Minnie, and Hardy Mott.