William Allport Leighton

William Allport Leighton (17 May 1805 – 28 February 1889) was an English Church of England clergyman and botanist.

Life He was the only son of William and Lucy Maria Leighton. His mother was the daughter and coheiress of John Allport of Prescot, near Baschurch, Shropshire. His father was the keeper of the Talbot Hotel in Shrewsbury, and the son was born there on 17 May 1805. He went to school at the Unitarian Manse on Claremont Hill, Shrewsbury, with Charles Darwin, who first encouraged him to be interested in plants. He went on to Wolverhampton Grammar School, and in 1822 was articled to a solicitor in Shrewsbury.

On the death of his father he abandoned the study of the law in favour of the church. He matriculated at St John's College, Cambridge, and graduated B.A. in 1833. Having been a pupil of John Stevens Henslow, Leighton on his return to his native town deferred ordination in order to draw up a flora of Shropshire. In 1843 he was ordained deacon and priest, and took on clerical duties in Shrewsbury until 1848, when he resigned his curacy at St Giles' Church,

In an 1854 work, Leighton coined the term to refer to the small, spot-like characteristic of the lichen family Arthoniaceae.

Family Leighton married, first, in 1827, Catherine, youngest daughter of David Parkes, a Shrewsbury antiquary, and they had one son and two daughters at her death; secondly, Mrs. Gibson, and they had a son.