1. The
Confederate Memorial at
Arlington National Cemetery.
2.
By the end of 1901 all the Confederate soldiers buried in the national cemeteries at Alexandria, Virginia, and at the Soldiers' Home in Washington were brought together with the soldiers buried at Arlington and reinterred in the Confederate section. Among the 482 persons buried there are 46 officers, 351 enlisted men, 58 wives, 15 southern civilians, and 12 unknowns. They are buried in concentric circles around the Confederate Monument, and their graves are marked with headstones that are distinct for their pointed tops. Legend attributes these pointed-top tombstones to a Confederate belief that the points would "keep Yankees from sitting on them." http://www.arlingtoncemetery.mil/Explore/Monuments-and-Memorials/Confederate-Memorial
Bonus:
I was first a 2nd Lieutenant, then a private, then a Colonel, then a Brigadier General, then a Colonel, then a Major, then a Brigadier General, then a Private, then a Full General
I think you must be
Albert Sidney Johnston
1826
2nd Lt., 2nd US Infantry/6th Infantry
1834 resigned commission
1836
Private, Texas Army
1836
Colonel, Texas Army
1837
Brigadier General, Texas Army
1846
Colonel, 1st Texas Rifle Volunteers, war against Mexico
1849
Major, US Army Paymaster
1855/6 Colonel, 2nd U.S. Cavalry (ahem, ahem)
1857
Brevet Brigadier General, Utah War
1861
Private, Los Angeles Mounted Rifles
1861
Full General
1862 Death at Shiloh
https://tshaonline.org/handbook/online/articles/fjo32
My last Trivia entry for a time. God bless all. "See" you soon from Bloemfontein, South Africa - God willing.
Edit - The main question asked about those who were buried at the base, not in the concentric circles. The source you cited names the four who were buried at the base.
Your answer to the bonus question was correct. Have a good trip to South Africa.
Hoosier