Hi IanC.
I wish I could give you more information. The truth is, I've heard the song sung only once, by a congregation, but I was so moved by it that the tune committed itself to my memory. I found the words at this site, after doing a Google search.
href="http://www.http://www.cbconf.org/shareware.nsf/pages/stewards.htm">Click here

I hope that blicky works.

So far, I have been unable to find any more info on it, but if I do, I'll be happy to pass it on to you.
KT