Thomas Archer Hirst
Thomas Archer Hirst FRS (22 April 1830 – 16 February 1892) was a 19th-century mathematician, specialising in geometry. He was awarded the Royal Society's Royal Medal in 1883.
Life
Thomas Hirst was born in Heckmondwike, Yorkshire, England, where both his parents came from families in the wool trade. He was the youngest of four sons. The family moved to Wakefield so that the boys could attend a better school. He left school at fifteen to work as an apprentice engineer in Halifax, surveying for proposed railway lines. It was there that he met John Tyndall, ten years older than Hirst and working as an engineer in the same firm.
In his late teens, at the instigation of Tyndall, Hirst decided to go to Germany for education, initially in chemistry. He eventually received a doctorate in mathematics from the University of Marburg in 1852 (tutor: Friedrich Ludwig Stegmann). In 1853, he attended geometry lectures by Jakob Steiner at University of Berlin. Hirst married Anna Martin in 1854, and spent much of the decade of the 1850s on the European continent, where he socialized with many mathematicians, and used his inherited wealth to support himself.