I'm not so sure of his father's information - All we have to go on so far is W. O. Hicks - Louisiana - born 1877
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MH1R-RTW : accessed 6 June 2017), W O Hicks, Wichita Falls, Wichita, Texas, United States; citing ED 112, sheet 19B, line 62, family 315, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 1858; FHL microfilm 1,821,858.
"Louisiana, Parish Marriages, 1837-1957," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKJC-N3N5 : 15 October 2015), Archibald Wallis O Ferlin Hicks and Ethel Charles, 20 Jan 1919; citing Orleans, Louisiana, United States, various parish courthouses, Louisiana; FHL microfilm 2,297,193.
(My only concern with this one is that it implies that his son was born 1912 and the marriage date here is 1919).
"United States General Index to Pension Files, 1861-1934", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KDYY-LSD : 3 April 2015), Archie W O Hicks, 1930.
And this one implies a beneficiary of the Pension of "Katie" Hicks
"United States Civil War and Later Pension Index, 1861-1917", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:N4GJ-1MK : 24 March 2016), Archie W. O. Hicks, 1930.
"United States World War I Draft Registration Cards, 1917-1918," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KZ8P-DRG : 12 December 2014), Archibald Walton Overton Hicks, 1917-1918; citing West Baton Rouge Parish, Louisiana, United States, NARA microfilm publication M1509 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,685,028.
More below on the possible marriage:
"Louisiana, Parish Marriages, 1837-1957," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKJC-RR3C : 15 October 2015), Archibald Walton Overton Hicks and Ethel Charles Hicks, 23 Jan 1919; citing New Orleans, Louisiana, United States, various parish courthouses, Louisiana; FHL microfilm 2,312,295.
"Louisiana, Parish Marriages, 1837-1957," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKJ8-CXTZ : 15 October 2015), Archibald Walton Overton Hicks and Ethel Charles Hicks, 23 Jan 1919; citing Orleans, Louisiana, United States, various parish courthouses, Louisiana; FHL microfilm 2,295,140.
"Louisiana, Parish Marriages, 1837-1957," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKJ8-CFVL : 15 October 2015), Archibald Walton Overton Hicks and Ethel Charles, 23 Jan 1919; citing Orleans, Louisiana, United States, various parish courthouses, Louisiana; FHL microfilm 2,295,140.
"Louisiana, Parish Marriages, 1837-1957," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKJD-WGZ4 : 15 October 2015), Archibald Walter Overton Hicks and Ethel Charles, 23 Jan 1919; citing Orleans, Louisiana, United States, various parish courthouses, Louisiana; FHL microfilm 2,322,672.
"Louisiana, Parish Marriages, 1837-1957," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKJC-RL6R : 15 October 2015), Archibald Walton Overton Hicks and Ethel Charles-Hicks, 23 Jan 1919; citing New Orleans, Louisiana, United States, various parish courthouses, Louisiana; FHL microfilm 2,312,607.