The HSSC has published a newsletter since 1962. Copies of the newsletter published between 1962 and 1988 are listed below.
Since 1989, the newsletter has had the name of the Southern Californian.
HSSC Newsletters (1962-1971)
HSSC Newsletters (1976-1985)
HSSC Calendar Newsletters (1985-1988)
HSSC Newsletter (1989-present)
In 1989, the newsletter was named the Southern Californian and those issues are available here.