Howard Grubb was born in 1844. His father was Thomas Grubb the founder of the Grubb Telescope Company based in Dublin. Interested in optics. Howard trained as civil engineer. Joining the family firm in 1864, he quickly became a first class telescope maker. When his father retired four years later, Howard took over the company. In October 1871 the company received an order for a 24 inch equatorial telescope, a fifteen foot revolving iron dome and an observing chair costing £2350 from the observatory on the Calton Hill. image credit Wikimedia Commons.