Harry was the son of George and Louisa Butler (née Long).
George was born in Rugby, Warwickshire, in 1863, the son of William Butler. Louisa was born in Birmingham in about 1863, the daughter of James Long.
In 1881 George Butler, a groom, and Louisa Long, a domestic servant, were living at Wells Green, Sheldon, Warwickshire, where both were in the employment of James Bunkle, a public accountant, and his wife.
George (25), a railway wagon builder, and Louisa (24), no occupation given, were married at Balsall Heath St Thomas in the Moors on 20 February 1887; both were living on Balsall Heath Road. They had nine children, two of whom died young. Their surviving children were: Louisa Mabel (Mabel) b. Birmingham 1888 (reg. J/F/M), George Leonard (Leonard) b. Birmingham 1889 bap. Long Eaton St Lawrence January 1893; Elizabeth Violet (Violet) b. Long Eaton 1891 (reg. J/F/M) bap. St Lawrence February 1891; Harry b. Long Eaton 10 November 1892 (reg. Shardlow 1893 J/F/M) bap. St Lawrence 13 January 1893; and Mary Jane b. 1900 (reg. J/F/M), John (Jack) b. 1901 and Dorothy b. 1906 who were born in Mansfield. The two children who died young were Dorothy May b. Mansfield 1896 bap. St John the Evangelist March 1896 d. 1897 (A/M/J) and James William b. 1898 d. 1902 (J/F/M) aged 3.
George, Louisa and their three children, Mabel, Leonard and Violet, were living at 2 Station Street, Long Eaton in 1891, but had moved to Chapel Street by the time Leonard and Harry were baptised in January 1893.
The family was living at 20 Pheasant Hill, Mansfield, when Dorothy May was baptised in March 1896; she died the following year. Her parents and their six children Mabel, Leonard, Violet, Harry, Mary and James were at the same address in 1901. James died the following year.
George, who was still working as a wagon builder, and his wife had moved to 15 Pheasant Hill by 1911. Only five of their seven surviving children were in the home on the night of the census: Violet a hosiery worker, Harry a coal miner, Mary, Jack and Dorothy. Leonard was working as a tailor's salesman in Derby and was a boarder at Gerard Street. Mabel was employed as a general domestic servant in the household of John Woolley, an electrical contractor, at Lyton Avenue, Mansfield.
George and Louisa had moved to 101 Bould Street, Mansfield, before Harry's death in 1915 and this was still their address when the CWGC record was compiled.
Louisa died in 1934 (reg. Mansfield). In 1939 when the England and Wales Register was compiled, her husband George, now retired, was living with his married daughter Dorothy Jennings (m. 1933 Thos. W Jennings, prev. Bowler m. 1926 Mansfield St John) and her husband at 107 Bould Street, Mansfield. George probably died in 1944.