Montgomery Meigs

Montgomery Cunningham Meigs (/ˈmɛɡz/; May 3, 1816 – January 2, 1892) was a career United States Army officer and civil engineer, who served as Quartermaster General of the U.S. Army during and after the American Civil War. Meigs strongly opposed secession and supported the Union; his record as Quartermaster General was regarded as outstanding, both in effectiveness and in ethical probity, and Secretary of State William H. Seward viewed it as a key factor in the Union victory.
Meigs was one of the principal architects of Arlington National Cemetery; the choice of its location, on Robert E. Lee's family estate, Arlington House, was partly a gesture to humiliate Lee for siding with the Confederacy.
In October 1864, his son, 1st Lieutenant John Rodgers Meigs, was killed at Swift Run Gap in Virginia and was buried at a Georgetown Cemetery. Lt. Meigs was part of a three-man patrol which ran into a three-man Confederate patrol. Lt. Meigs was killed, one man was captured, and one man escaped. To the end of his life, Meigs believed that his son had been murdered after being captured—despite evidence to the contrary. The younger Meigs was laid to rest in Oak Hill Cemetery in Georgetown in Washington, D.C. Both Abraham Lincoln and Secretary of War Edwin M. Stanton attended the interment.
Meigs was also present for Lincoln's death. At 10:00 pm on the evening of April 14, 1865, Meigs heard that William Seward had been attacked by a knife-wielding assailant. Meigs rushed to Rodgers House, Seward's home on Lafayette Square just across the street from the White House. Shortly after arriving at Seward's home, Meigs learned of the shooting of Lincoln. He rushed to the Petersen House across from Ford's Theatre, where Lincoln lay dying. Meigs stood at the front door of the house for the rest of the deathwatch. He alone decided who was admitted to the house. When Lincoln died at 7:22 am on April 15, Meigs moved into the parlor to sit with the president's body. During Lincoln's funeral procession in the city five days later, Meigs rode at the head of two battalions of quartermaster corps soldiers.
Meigs played a critical role in developing Arlington National Cemetery, both during the Civil War and afterward.
https://en.wikipedia.org/wiki/Montgomery_C._Meigs