Kip, I have some info to share on John Quincy Burbridge and William Fuqua Carter.
First Burbridge: Nickname "Jack", born ~1831 in MO, died 1892 in Arizona (Phoenix or Tuscon) at 61 y/o, buried in Calvary Cemetery, St. Louis MO, Section 13, Lot 244, Grave #1. In the War Between the States, was Capt. Co B & Colonel 1st Infantry, 3rd Division Missouri State Guard (MSG), later Col. 2nd Cavalry, 2nd Division MSG, Colonel 2nd MO Infantry (CSA) and lastly Col. 4th MO Cavalry (CSA, also known as Burbridge's Cavalry). POW Camp Jackson affair, near St. Louis May 1861. Wounded severely in the head at battle of Wilson's Creek (Oak Hills to Confederates, near Springfield MO) 10 August, 1861. After the war he had businesses briefly in St. Louis MO and Alton, IL. He is listed in Pike Co. MO census 1850, 1860, 1870 & 1880. May have been in California gold rush in 1850, was a merchant in 1860, farmer in 1870, tenant in 1880, all from census occupation data. In the early 1880's he moved to Jacksonville FL and was in real estate there. Also purchased land near Gainesville FL. Established the community now called Jacksonville Beach. Was mayor of Jacksonville and a railroad developer there. Helped to found the Jacksonville Public Library. Went to Arizona for his health (throat problem) and died there. Sources: Sterling Price's Lieutenants (Peterson, McGhee, et.al.) Biographical Souvenir of the States of Georgia & Florida (1889, Battey & Co.), Confederate Veteran Magazine (Sept 1918), Serving With Honor (Banasik, p.378-80), Lee's Colonels (Appendix, Robert K. Krick), Florida Times-Union (Saturday, November 26, 1892).
Now for William F. Carter. Went to California during the gold rush, was a brick mason & tobacconist otherwise. A member of the same Louisiana (Pike Co) Militia unit pre-war as Burbridge. In the War Between the States was 3rd Lieutenant & Capt Co B 1st Inf, 3rd Div MSG, then Capt Co F & Major 2nd MO Inf. (Note John Q. Burbridge was also in these units, among others.) Carter was killed in action near Alatoona GA, 5 October 1864, during an assault by French's Division on Union fortifications guarding the railroad through Alatoona Pass. He was buried in GA, but the precise location is unknown. A few years ago a monument was placed on the battlefield, in the shape of the state of Missouri, honoring the men of MO who died there. His name is among those listed on the monument. This officer is sometimes confused with William Farley Carter, who was Capt in the 9th MO Inf (CSA) and lived 1843-1930. They are not the same man. This William F. Carter is buried in Englewood Cemetery in Clinton, Henry Co. MO. Sources: Lee's Colonels (Appendix, Robert K. Krick), Confederate Roll of Honor: Missouri (Leslie Anders), Sterling Price's Lieutenants (Peterson, McGhee, et.al), United Daughters of the Confederacy Files (Joanne Eakin), Forgotten Valor (James W. Farley).
I trust you'll find this helpful. Regards, Mark