You are probably right, I think he played Festival Theatre on that 79 tour though..... it's all before my timespot on, but I think he was more known on the East coast than here in good ol' SA. I saw kids at uni in the 70's walking around with Rodriguez T-shirts but I had no idea who he was - doh! I could just punch myself in the face.
I heard his stuff quite a bit as a kid because of Dad & his mates, he was always quite popular here among musicians and songwriters i believe.