Charles Darwin's son Horace Darwin was the engineer who co-founded the Cambridge Scientific Instrument Company. The company developed and manufactured precision instruments for scientific research, including equipment used in laboratories and observatories.
Horace was born at Down House in 1851, the fifth son of Charles and Emma Darwin. He studied at Trinity College, Cambridge, graduating in 1874, and later trained in engineering. In 1881 he formed the Cambridge Scientific Instrument Company with Albert George Dew-Smith. Horace eventually became its sole owner in 1891 and led it for many years.
The wording sometimes creates a small historical trap: Horace did not establish the business entirely by himself. The company had earlier roots involving Robert Fulcher, and Horace's formal role was as a co-founder with Dew-Smith. Nevertheless, Horace Darwin is the Darwin son most directly associated with the company's creation and leadership.
Horace also served as Mayor of Cambridge, was elected a Fellow of the Royal Society in 1903, and was knighted in 1918. His brother George became a prominent astronomer, while Francis worked in botany.