The Story of a Cannoneer Under Stonewall Jackson, in Which Is Told the Part Taken by the Rockbridge Artillery in the Army of Northern Virginia (1910)

(ISBN 10: 054898980X / ISBN 13: 9780548989807 )
Moore, Edward A. and Lee Jr, Robert E.
http://www.abebooks.com/servlet/SearchResults?an=Robert+E.+Lee%2C+Jr.&sts=t&x=0&y=0

Initially, Rob served as a private in the Rockbridge Artillery in 1862. After the Battle of Sharpsburg, he was promoted to the rank of Captain and assigned to serve as aide to his older brother Custis, who was a major general and aide-de-camp to Confederate President Jefferson Davis, and was involved in defending Richmond, Virginia.
http://en.wikipedia.org/wiki/Robert_E._Lee,_Jr.

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Speeches at Richmond reunion, May 30 to June 3, 1907, of Stephen D. Lee, Robert E. Lee, Jr. and J.W. Daniel.
by Stephen D Lee; Robert Edward Lee; John W Daniel; United Confederate Veterans.
http://www.worldcat.org/search?qt=worldcat_org_bks&q=%22Robert+E.+Lee%2C+Jr.%22&fq=dt%3Abks