The sitter was the son of Edward Morgan, and his wife Louisa, née Griffiths. Their home, Golden Grove, in Flintshire, North Wales, was built by Sir Edward Morgan in 1580 and the Morgan family remained there until 1877. It was bought by the Aberconway family and then by the uncle of the present owners. Golden Grove is now a Bed & Breakfast.
Augustus’s father was Deputy Lieutenant and High Sheriff for Flintshire and Lieutenant Colonel of the Militia. Augustus’s brother, Edward (b. 1793) was a soldier in the Royal Fusiliers and saw action in the Peninsular War. Their sister Louisa Henrietta (b. 1800) married Colonel Richard Steward, MP for Weymouth and a member of the Dorset militia. Augustus entered the Church.