Biography.com: More, Henry: Concise biographical paragraph.
Catalog of the Scientific Community: More, Henry: Basic biographical information from the Galileo Project.
Henry More, 1614-1687: A Biography of the Cambridge Platonist: Jasper Reid reviews this book by Robert Crocker. From Notre Dame Philosophical Reviews.
John Smith and Henry More Contrasted: A brief section from the Cambridge History of English and American Literature.
MacTutor History of Mathematics: Henry More: Biographical article with bibliography and links to related topics, by J.J. O'Connor and E.F. Robertson.