I was not able to find a recording that you can listen to or download online; however...

A recording is held by the University of North Carolina at Chapel Hill:
http://search.lib.unc.edu/search?Ntt=a+choir+boy+sings+all+alone+to-night+%5Bsound+...&Ntk=Title&Nty=1&sugg=is

A recording is held by Stanford University:
http://searchworks.stanford.edu/view/6684945