FamilySearch.org has a current web page which provides information with regards to an individual's relatives who served on missions during the early days of the church. It includes the mission of Isaac Wardle to Britain. It includes some information that I did not know. For example, he was set apart by C.C. Rich. Isaac was a Seventy when he served his mission. He was a member of the 9th quorum of Seventies. He served form January 1879 to September 1879. My history of Isaac's mission, based on the many letters he sent home, is at this link. Isaac's mission to England.