Edward Bredell. First Lieutenant and Aide-de-Camp on the staff of General J.S. Bowen, April 23, 1863. July 4, 1863, he was made a prisoner at Vicksburg, Mississippi, and paroled. Later he enlisted as a private in Company D (Mosby's Cavalry command), Captain R.P. Montjoy's Company, organized in 1864. He was killed in action...
The fact that Bredell was at Vicksburg was news to me. The day after Vicksburg surrendered and Bredell was taken prisoner, the Commercial Club was celebrating the Fourth of July by playing a baseball game at Lafayette Park, the former grounds of Bredell's old ball club. I imagine that the events of Gettysburg and Vicksburg were the big news of the day and you have to wonder how many of Bredell's old ball-playing friends learned about his capture that day.
The other source I found was a website called ranger95.com, which has some fantastic and detailed information about Civil War units. Bredell is listed with the 43rd Cavalry Battalion, Company D, under the command of Captain Richard Paul Montjoy:
Enl. at age 22. Occ. gentleman. Pvt. in Co. of light art. 1st Lt. and ADC 6-10-62 to 8-30-62 Phofer's 3rd Brig., Maury's Div. Army of the West. Recommended 1-7-63 as 1st Lt. & ADC to Gen. John S. Bowen. Trans. 4-23-63 to staff of Gen. Bowen. Capt. 7-4-63 at Vicksburg, Par. (date unknown). Inv. in battles at Grand Gulf, Port Gibson, Baker's Cr. and Big Black. Filed application 6-6-64 for appointment to A & IG Dept. Joined the 43rd. Va. Cav. (date unknown). KIA. 11-16-64 in the "Vinyard Fight" near Berry's Ferry. Bur. originally in the Shenandoah R. but later removed to Cool Spring Methodist Church Cem, Delaplane, Fauquier Co. Remains later removed to the grounds of his father's home in St. Louis, Mo. on Laffayette Ave. between McNair and Missouri streets. B. 1839, son of Edward Bredell and Angeline C. Perry.
The June 10, 1862 date of Bredell's enlistment seems reasonably accurate, given that the Missouri Republican (June 20, 1864) stated that he had left St. Louis to join the rebellion on June 17th. However, I would argue that Bredell's occupation should be listed as engineer, rather than gentleman. Also, I think it's interesting to note that he had only been with Mosby's Rangers a few months before he was killed and most likely would have survived the war if he had honored the conditions of his parole. And having said that, I don't know what the conditions of his parole were and he may have honored them by not serving as an officer with Mosby's outfit. But, I think it's safe to say, if Bredell had honored the spirit of his parole and did not take up arms again against the United States, he would have survived the war.