[4] Warner started his career by working for his father's mining business.

[7] He was also active in utility companies in "Memphis, Knoxville, Birmingham, Little Rock, Houston, and New Orleans.

"[2] Additionally, Warner served on the board of directors of the National Light and Power Company of New York.

[2] Warner served on the board of directors of the Nashville Trust Company.

[4] Two of his daughters, Mary and Percie, were the first and second wives of Luke Lea, who served as the Senator from Tennessee from 1911 to 1917.