Not to my knowledge. From what Gary told me, it wasn't too long before their triumvirate of books were taken up by the Llewellyn Foundation (all done by 1950).Is there a written record, or otherwise, reliable historical information, about when exactly did Fagan and Bradley start communicating/corresponding?
https://solunars.com/viewtopic.php?f=19&t=178
This link is to an article Fagan wrote for The Astrological Bulletina for 1949. Bradley edited the Bulletina, so this shows correspondence interaction between them in 1948, which is the approximate time all the other facts point to (I would have said '47 to '48 based on the publication schedule). In this article, Fagan takes Bradley's earlier (standard Tropical) analysis of Griffith Abrams death and looks at it through the lens of solunars. By the time of this article, Fagan was already putting out his Sidereal ephemeris through AFA, and Llewellyn was distributing it. I have the '49 and '50 ephemerides, and the former alludes to the 1948 ephemeris, so Fagan was at least calculating some version of these ephemerides from 1947 (for the '48 issue).
The copyright on Solar and Lunar Returns was 1948. The Fagan-Bradley correspondence preceded that writing, which again makes me think 1947.
I should mention, though, an important part of the time line usually missed until you lay all this out: Even though Profession & Birth Date and Zodiacs Old and New came later (both with 1950 copyrights), the core work of both of those works had been done by the time Solar and Lunar Returns was published in 1948. How do I know? Because the VP tables in the back use the Spica = 29° Virgo standard. (VP 1/1/1948 5°53'21" Pisces, a reference to the VP crossing 0° Aries in 213 AD credited to Fagan). Fagan originally used Spica = 0° Libra (Lahiri standard) as a starting point, but moved this back to 29° Virgo (the value on which the Solar and Lunar Returns tables were based). Fagan's 1949 ephemeris still used the Lahiri standard (he gave Neptune as 21°59' Virgo on 1/1/1949) so, when he was calculating this in 1948, the 1° backup hadn't occurred yet; but it was already there in the 1948-published Bradley book (not sure what month it came out).
The history of that 1° switch isn't generally known. Bradley credited Fagan with it. I know through Gary (who was there at the time) that Bradley had already completed the Profession and Birth Date study (not published for another two years) which showed Fagan's first estimate was 1° off on the boundaries of the zodiac. Either this was the last clue Fagan needed to solve the Hypsomata problem or he had concurrently come to the same conclusion and not announced it yet. He replied to Bradley confirming the 1° shift (not sure how he wrote that, just that it was a basic, "Yes! You're right! This is exciting!" sort of letter.
So the two came to the same conclusion about the same time and were marching forward together on it from them on. This had to be sometime in 1948 and probably not early in the year, because the '49 ephemeris still had the old standard but the '48-published Bradley book had the new standard. (The one-two punch of ZOAN for the archaeology and P&BD for the statistics was published in 1950, side by side, to complete making their case.)
Fagan's first publication on solunars in the AFA journal was 1944 when Bradley was 19. I'm pretty sure he wasn't working for Llewellyn yet and don't know how deep into astrology he was; but he was writing for and editing the Bulletina by 1948. (Fagan had an article in the '49 issue.) In any case, he was aware of Fagan's earlier work by then.
So they may have had connection and interaction by 1947 but at least had it by 1948 (early in the year, probably).
You've found the right spot. I know specifically that the two never met in person until Fagan moved to Tucson, where Bradley was already living (and working at Clancy Publications).Also, assuming such meeting did happen, when and where did he meet Bradley for the first time in person? (From what's available online, I know that Fagan moved to Tucson, AZ in 1966; there's no more detailed info about this than the year itself, and info of there being a note written by him dated April 1st 1966 with place noted Tucson, which indicates his coming there was sometime between January and March of that year.)