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John Langhorne (1836 – December 1911) was headmaster of The King's School, Rochester and an educational innovator there. He has been called "Lamberhurst's first local historian"
Born in Giggleswick, Yorkshire, United Kingdom, Langhorne's father was John Langhorne (1805–1881; referred to hereafter with the term "senior", to distinguish him from his son) of Haber House, Crosby Ravensworth, Cumbria. John Langhorne (senior) was born at Haber Farm and was schooled at Shap and Sedbergh School, subsequently becoming master at Beetham. He became mathematics and writing master of The Free Grammar School of King Edward VI for thirty years. He served most of his time under headmaster George Ash Butterton. He managed the School Accounts from 1839–1845, but they were found to be "so in accurate and confused" that Mr Robinson had to enter them in the book. This may have been because "in 1840 the … number of boys in the High School learning writing and arithmetic under Langhorne was greater than one man could efficiently attend to". Langhorne resigned "almost immediately" at the replacement of headmaster Butterton by John Blakiston in about 1859.
John Langhorne (senior) was the cousin of Thomas Langhorne of High Dalebanks, Crosby Ravensworth who was the founder of Loretto School. He subsequently retired to Haber House in Crosby Ravensworth to pursue farming.
His mother was Elizabeth Wildman (1806–1878). She was the daughter of Mary Clark and William Wildman, a farmer from Giggleswick. They may have been related to John Wildman (born 1811) bookseller and publisher in Settle. (John and William Wildman were rather distantly related. William's grandparents William Wildman and Elizabeth Frankland were John's great-grandparents.)
The Langhorne family claimed descent from Major General Rowland Laugharne