Analysis of information sources in references of the Wikipedia article "Earlham Hall" in English language version.
1786: [Opie] writes Adelaide, a 5-act play; wide social circle includes the radical Mrs. John Taylor, as well as literary figures Dr. Aiken and his sister, Anna Letitia Barbauld, and the Quaker Gurney family, including John Joseph, who was to become an important figure later in the 19th century, and Elizabeth, who after her marriage to Joseph Fry became a leading advocate for prison reform; meets Sarah Siddons, the actress, in Norwich (September)
...Earlham Hall, the birthplace of the Gurneys... where we sometimes hear of Mrs Taylor visiting Earlham Hall on a summer afternoon...Mrs Taylor speaks of visiting at Holkham and hopes they [her and her husband and other friends] may enjoy themselves...