Hi Sue, both are Australian artists of course, as Godz showed above, both only released in Australia, never in the UK.
I've found copies of both records quite regularly over the last 30 years. They're of more interest to Aussie beat collectors really and not really worth much either because they're relatively common. I remember I played the Laurie Allen disc a couple of times at the first Sydney northern soul nights back in 1981 but it cleared the floor. No surprise really, it isn't very good ! There are plenty of other superior versions of Cool Jerk floating around ...
Cheers !