So, your guitar player, Jack Endino recorded Nirvanas first record, Bleach?
Indeed he did, but even before that, he recorded their first demo, most of which ended up on the Insesticide record. One of the songs from that demo, “Mexican Seafood,” was released on the Teriyaki Asthma Vol. I single on C/Z, and was the first ever Nirvana song released. Dale Crover (borrowed from the Melvins) played drums on that demo, and it was that tape which led to Sub Pop signing them, eventually releasing Bleach, which, yes, Jack recorded.