Please answer the following question: Given the following passage  "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 following question. Note that the answer is present within the text.  Question: What is the last name of the married couple that visited scouts on Saint Helena?
A:
Baden-Powell