#1 - Alan Howard (b. 1934) writes on Polynesia
#3 - Alan Howard (b. 1907) wrote for children
#4 - Alan Howard (d. February 2015), British Shakespearian actor who was the Voice of the Ring in Peter Jackson's Tolkien films.
#5 - Alan Howard, UK teacher in Waldorf schools and writer on anthroposophy. He emigrated to Canada.