Go to this free site FamilySearch.org. Look on 1940 census: list Chad Bentley born 1915 married, serving time in Leavenworth Penitentiary, Kansas.
Found marriage of Ben E. Bentley and Bernice Knowles.
Married on 10 May 1913 in Greene Co. Arkansas. He was 21, she was 16.
Ben Bentley died 1916 buried at Linwood Cemetery.(find his grave on Find Grave).
Did not find anything on Doyl Latham.