The 1969 release by Rebecca and the Sunny Brook Famers, entitled "Birth", might be considered the birth of Chunky, Novi and Ernie as all three were part of this band.
The trio released their first album in 1973 on the Reprise label (and Frank Zappa contributed backing vocals to 'Rosalie').
Here's Rebecca and the Sunny Brook Farmers' "Birth" album:
go to artists: "String Planet"
and be sure to look at Parts 2 (early years) and 5 (mentioning Frank Zappa).
-- info: Jan van Kemenade