Please answer the following question: Question: "What is the last name of the married couple that visited scouts on Saint Helena?"  Context: "There are scouting and guiding groups on Saint Helena and Ascension Island. Scouting was established on Saint Helena island in 1912. Lord and Lady Baden-Powell visited the Scouts on Saint Helena on the return from their 1937 tour of Africa. The visit is described in Lord Baden-Powell's book entitled African Adventures."  Answer:
A:
Baden-Powell