The business was launched by William Hargreaves (1803-1874), who was the son of William Hargreaves of Colley & Hargreaves. In 1825, William Jun. had married Mary, the daughter of cutler Robert Tricket. He became involved in the running of Colley & Hargreaves, but after 1834 – when his father died – William went into business with his sister Lydia. By 1837, William & Lydia Hargreaves was listed in Eyre Lane as a merchant and table knife manufacturer. In 1839, Lydia married....