Hi, Mark - take a look at the All-Music Guide. You'll find theat the 1968 "Circle Game" was NOT Rush's first album, but that Joni Mitchell's first album did come out in 1968. Joni's recording of "Circle Game" came out on her Ladies of the Canyon in 1970. Sure does seem that Tom Rush did record some of those great songs before the songwriters did.
-Joe Offer-