[1] Hill served a total of two enlistments in the Marine Corps, one during World War II, resulting in a discharge due to lying about his age upon enlistment (similar to Calvin Graham), and the other briefly before the outbreak of the Korean War.

[2] Hill was issued his number upon induction into the Marine Corps on July 8, 1944, at the height of World War II and during a time period when the United States Marine Corps was heavily engaged in several bloody battles in the Pacific Ocean.

The issuance of the one millionth Marine Corps service number was a sensation in the media and was reported by several major newspapers, including The New York Times.

It was then discovered that Hill had made false statements to the induction board and was only sixteen at the time he was drafted.

During his second enlistment, he held his previous service number of one million, although the post-World War II media took little interest.