The brothers were George Gallimore (b. 9 April 1821) and Charles Gallimore (b. 4 April 1823).  They were the sons of Joseph Gallimore (1796-1838), a silver-plater, and his wife Martha neé Atkinson (1798-1869).   The family lived and worked in the Radford Street / Upper Allen Street/Edward Street area of cutlery workshops (and dwellings).   Charles is known to have been apprenticed to Josiah Barnes.   Joseph died on 23 August 1838 and was buried in St George’s churchyard.  

By 1852, his sons had launched Gallimore Bros, a spring knife and razor manufacturer in Radford Street, which employed six men and four boys.  The enterprise operated as a typical Sheffield spring-knife firm, with a reputation for quality.   In 1855, Gallimore Bros exhibited at the Paris Universal Exhibition.   Their trade mark was ‘I*C’.  By 1856, the business address was Kenyon Works in Edward Street, where the firm also manufactured dirks and Bowies.   The company remained there between the 1860s and 1880s.  In 1871, the business employed 14 workers, when George Gallimore was living in Heavy Gate Road, Walkley.   Charles lived in Radford Street.  Both brothers took a lively interest in local political and government associations.   George’s involvement in Chartism had led to his arrest in 1839 as a ‘rioter’, but after a spell in jail he was acquitted in York in the following year.  George Gallimore, Howard Hill, Steel Bank, died ‘after a long illness’ on 16 May 1872, aged 51.   He left under £3,000 and was buried in Burngreave cemetery.  Charles died ‘suddenly’ on 29 December 1880, aged 57, and was buried in the General Cemetery.  Their brother, Henry Gallimore, ‘cutler’ of Kenyon Street, who died on 28 November 1885, aged 52, may have worked for the firm.  Another brother – Joseph Gallimore (1825-1902) – became a silversmith.

Gallimore Bros was continued by George’s sons: George Peel Gallimore (1846-c.1928) and John Atkinson Gallimore (1849-1938).  The firm had extended its range of products to include sportsman’s and champagne knives.   In 1881, George P. Gallimore was living in Edward Street and was enumerated in the Census as a ‘cutler master’, employing 12 men, two boys, and one female.  John A. Gallimore was living in Yew Tree Terrace, Heavy Gate.  Gallimore Bros was last listed in 1890.  According to a relative, two years later George Peel Gallimore emigrated to the USA and was soon followed by his family (personal communication, Leslie Anderson).  He settled in America, and died in about 1929 in Newark, New Jersey.   John Atkinson Gallimore’s later history is untraced, but he continued to work as a cutler (though not as an employer) for a time and died in Sheffield in 1938, aged 89.  Henry Gallimore’s daughter Florrie (1867-1943) and son John Arthur (1870-1950) became noted music hall artistes (personal information from Marianne Morgan).