 Complete the following phrase:  Wrightson was born in Haughton-le-Skerne in County Durham, the son of Thomas Wrightson 18001872 and Rebecca Gilchrist née Potter 18031884 and was the brother of Rebecca Ingram Head, Mary Wrightson, the Revd. William Garmondsway Wrightson and the Conservative politician Sir Thomas Wrightson. In 1863 Wrightson had been a foremost student at the Royal Agricultural College following which he was a professor of agriculture at the same college for 15 years 18641879. In 1868 he was initiated as a Freemason into the Cotteswold Lodge No 593. His interest in agricultural education was developed following a tour of Europe while acting as the Royal Agricultural Societys representative at the 