I believe this photo originally ran in "The Daily Mirror" newspaper, which identifies the man as "Mr. P. Henry, a steward." There was a boots steward named William Henry Rattenbury who signed the ship's articles as "W. Henry" (I'm not sure why.) I suppose this could be Rattenbury, but why whoever supplied the photo to the mirror also gave the false name I don't know.
I have also wondered whether or not the man in the photo might be Edward Hendy, another Titanic steward.
Thanks Chris,in the book it also has Mr E. S. Freeman twice,one as Mr S. Freeman a Steward,it is obvious it is the same gentleman,and on Mr E.S. Freeman's Bio site on this page it has both photo's.,I have wondered about Mr P. Henry since i have gotten the book(last week)I thank you for telling me im not alone,im not the only one who's confused here,Regards,James Owens