After I typed in the last lot of lyrics I tried another google search ( the first was unsuccessful) and this time I hit paydirt. Most of the songs I listed above are actually by Leigh Newton from his album 'Christmas in the Scrub' (1983) And he has all the lyrics on his website - Leigh Newton Lyrics and he also has mp3s of some of them.
It looks like he still has his albums and songbooks for sale as well...