Arthur John King was probably born between July and September 1884 in Westbury on the Severn, Gloucestershire. He was baptised on the 4th of January 1885 at Newham, Gloucestershire. His parents were Herbert and Harriet King. They lived at Broad Oak, Gloucestershire and his father worked as a mason. He had a brother, Charles Herbert King, who was two years older. His parents moved to Portskewett, Monmouthshire, Wales before his second brother Robert Ernest King was born around 1887. By 1891 the whole family was living at No. 4 Railway Shaft, Many Brick Lane, Totley, Derbyshire. Herbert had changed professions to the Railway Line Keeper. They had moved back to Wales by 1901, to Dock Cottage, Caernarvonshire. Arthur had started work as a bricklayer, Herbert was now an inspector of buildings and Charles was an engine fitter.
Around 1905 or 1906, Arthur married Florence May King (maiden name unknown), who was 4 years his senior. On the 22nd of September 1906 they had a son, Arthur Archibald King in Eastwood, Nottinghamshire. In 1911 the family were living at Brickyard Lane, Thorne, Yorkshire. Arthur was a bricklayer, as was their unmarried boarder David Worsley, 34. In the next 5 years the couple may have had 2 more children, though their identities are unclear. In 1916 the family lived at 23 Beaconsfield Road, Doncaster. Arthur worked as a foreman bricklayer for Thomson and Dixon, and they submitted an exemption request on his behalf as he was working on their colliery housing project. The Advisory committee recommended for a conditional exemption, and it seems Arthur did not have to serve in the military as a result.
In 1939 the family lived on 136 Thorne Road, Doncaster with their daughter in-law Catherine King. Arthur John King and Arthur Archibald King were partners in a building contracting company, possibly W.R.C.C. of Don Valley. Arthur John supervised labour, while Arthur Archibald was involved in buying, estimating and surveying. The company seems to have been particularly involved in Air Raid Precautions initiatives, especially rescues, repairs and demolitions.
On the 12th of October 1949 Arthur John King passed away at the age of 65 at Abiel Nursing Home, Thorne Road. His home was still officially 136 Thorne Road, Doncaster. He left his wife and eldest son around £2,000 between them. On the 20th of June 1968 Arthur Archibald King passed away at age 61. Florence May King died in the first three months of 1976 at 96 or 97. All three of them are buried in the same plot at Barnby Dun Cemetery, Doncaster.