Given the question: Question: "Who did Lord and Lady Baden-Powell visit on the return from their tour of Africa?"  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:
The answer is:
the Scouts on Saint Helena