You should join Family Search, which is a free site.
Here is a start on John Quincy Wood. A Find A Grave record of his burial and a WW I draft record shows he was married to Mollie in 1918 when this was filled out.
"Find A Grave Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVVY-3D2T : 13 December 2015), John Quincy Wood, 1927; Burial, , Walthall, Mississippi, United States of America, Wood Cemetery; citing record ID 27369935, Find a Grave, http://www.findagrave.com.
"United States World War I Draft Registration Cards, 1917-1918," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KZ89-N7V : 13 March 2018), John Quincy Wood, 1917-1918; citing Walthall County, Mississippi, United States,
And here is the Find A Grave Record for Mary Elizabeth "Mollie" Ard.
"Find A Grave Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVVY-3DL7 : 11 July 2016), Mary Elizabeth Ard Wood, 1975; Burial, , Walthall, Mississippi, United States of America, Wood Cemetery; citing record ID 27370063, Find a Grave, http://www.findagrave.com.
You can use the data from these records to help you start on your search. Good luck on your endeavor.