Dear Debra, On a family tree I have is Warren D. Cargo (b. 1878) and married to Clara P. (b. 1869).It does not list any children but it does list Warren's parents as Joseph Markel Cargo (b. 31 Oct 1843/d. 24 November 1926) and Laura L. Rhodes.
Warren's siblings are:Jane, Charles, William Rhodes, and Lida.