flank was as important as the more famous defense of the Union left flank on July 2, by Col. Strong Vincent's brigade on Little Round Top. In fact, given that the Union line was only from the vital Union supply line on the Baltimore Pike, it can be argued that it was more important. However, Greene's contributions to this critical battle have never been widely heralded, principally because of a dispute between Meade and Slocum over the filing of their official reports. But a member of Greene's brigade wrote: Western Theater In the fall of 1863, the XII Corps was transferred to the West to reinforce the Union forces besieged at Chattanooga. At the Battle of Wauhatchie, during a surprise night attack by the Confederate forces, Greene was wounded in the face, with his jaw crushed and some teeth carried away. Subsequent surgery was not able to correct his condition and he suffered from the effects of his wound for the rest of his life. After six weeks of medical leave, he was assigned to light court-martial duty until January 1865, when he was sent to join Maj. Gen. William T. Sherman's army in North Carolina. Initially Greene voluntarily served on the staff of Maj. Gen. Jacob D. Cox participating in the battle at Kinston, where he had his horse shot out from under him. At the very end of the war Greene was in command of the 3rd Brigade in Absalom Baird's 3rd Division, XIV Corps, and participated in the capture of Raleigh and the pursuit of Gen. Joseph E. Johnston's army until its surrender. Postbellum career After the war, Greene served on court-martial duty for a year and then returned to civil engineering in New York and Washington, D.C. From 1867 to 1871 he was the chief engineer commissioner of the Croton Aqueduct Department in New York. At the age of 86, he inspected the entire 30-mile Croton Aqueduct structure on foot. He served as president of the American Society of Civil Engineers from 1875 to 1877 and president of the New York Genealogical and Biographical Society. He was appointed to West Point's Board of Visitors in 1881. By 1892, Greene was the oldest surviving Union general and the oldest living graduate of West Point. He petitioned the United States Congress for an engineer captain's pension that would be of help to his family after his death. The