His son (General Green's), Capt. Thomas B. Green, was exchanged after the surrender of Vicksburg, 4 Jul 1863. He was killed in the Battle of Franklin, Tenn.
"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MDZD-4SS : 12 April 2016), Thomas B Green in household of Martin E Green, Lewis county, Lewis, Missouri, United States; citing family 778, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
"Missouri, Civil War Service Records of Confederate Soldiers, 1861-1865," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XFKY-KSY : 4 December 2014), Thomas B Green, 1862; from "Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of Missouri," database, Fold3.com (http://www.fold3.com : n.d.); citing military unit Third Battalion, Cavalry, E-I, NARA microfilm publication M322 (Washington, D.C.: National Archives and Records Administration, 1961), roll 28.