William Hannum Grubb Bullard was an admiral of the United States Navy, whose service included duty during the Spanish–American War and World War I. After World War I, he established the Navy's patrol on China's Yangtze River. A noted electrical engineer, he wrote a popular handbook on naval electrical systems, and contributed to the use of radio in the Navy.

USNS Neptune (ARC-2), was the lead ship in her class of cable repair ships in U.S. Naval service. The ship was built by Pusey & Jones Corp. of Wilmington, Delaware, Hull Number 1108, as the USACS William H. G. Bullard named for Rear Adm. William H. G. Bullard. She was the first of two Maritime Commission type S3-S2-BP1 ships built for the US Army Signal Corps near the end of World War II. The other ship was the Albert J. Myer, which later joined her sister ship in naval service as the USNS Albert J. Myer (T-ARC-6).