Son of John Greener Hallimond and Annie Foggitt Hallimond, of 703, North Lake Avenue, Belmar, New Jersey, U.S.A. William was born in Bushey on the 9th May 1884. He was a civil engineer and was living at 407 8th Avenue Belmar, New Jersey USA. His next kin was given as his father Rev John Greener Hallimond. He was also recoded as active in the militia. He was allocated to the 6th Battalion. He was of medium complexion, 5’ 8 ½” tall, with 38 ½” chest, blue eyes and had dark hair.