Harry John Slight was born in Southampton, Hampshire, England on June 30th, 1878. He was the son of William Henry Slight (b. 1836), a house decorator, and Mary Bryant (b. 1837). His father hailed from Southampton and his mother from Ashton, Kent and they had married in Sussex in 1864. Harry had six known siblings: Clara Ann (b. 1866), Jessy Kate (b. 1868), Alice Mary (b. 1870), Henry James Bryant (b. 1871), Mary Jane (b. 1873) and William Henry James (b. 1875). Slight is the only one who maches with all of this, so this finally proves that body #21 was Harry Slight.