Miller's Astrological Charts
The chart design is credited on the website to Astrosoft. The full chart analysis (in symbols and German) can be found on the website.
Astrology For The Soul also provides an astrological chart for Henry, created by Nick Dagan Best. This companion article not only offers some explanation for Henry's chart [seen below], but also provides a chart for Anais Nin, as well as a chart for the event of the first meeting between Nin and June Mansfield.
I'm sure many of you have already stumbled upon the Cosmic Baseball website at some point while searching for Miller on the internet. My impression is that "teams" are created out of various famous people and their astrological information is competitively-compared Stat-O-Matic Baseball style. To be honest, I'm really not interested and couldn't easily figure out what it's all about. If you're curious, check out Henry Miller's cosmic profile and stats or June Mansfield's stats.