I am not sure about 'previous' phonebook sources, but WCSB & JFSB was 'nice' in that it showed what JS and DS were assigned to each galaxy and even cluster at the time. IMO it insinuated that the JS, and especially the DS, were assigned to those frontline formations the whole time- especially when the names matched up. Details of that sort get dropped later on- b/c it led to things like my opinion the Warden Wolves should have been a merchant power-house in the LA/LC with JS after the Refusal War- because it caused FASAnomics problems in the most precious commodity in the BTU, drop collars.
FREX, look at the transport for the 5 clusters (4th WG, 16th WG, & 3) Phelan took to Morges, and the remains (13th WGs, 341st, 352nd, Green Keshik, 16th Battle) escaped Wotan were detailed in WCSB. So you can figure Phelan had exactly what was listed for the transport of his clusters, or the equivalent, from WCSB. Star Colonel Marco Hall brought the 13th Wolf Guard's transport and part of the 341st, 352nd, and maybe 37th Striker. The Green Keshik survivors and what they salvaged from Gamma Clusters that were assigned to Ulric & Natasha's spearheads would bring some of Gamma's transport capability. While Phelan's five clusters had fully loaded JS & DS with a fleet train, the Wotan survivors probably showed up with JS & DS that had empty space since what retreated were damaged units- so a half-loaded Overlord C might be docked to a Star Lord that only had 3 of the 5 collars occupied FREX. And some of the Wotan tasked units would have had their dropships captured or surrender to the Falcons even if they were fighting still- like the 11th Wolf Guards (or Battle) that were a bunch of Wardens that become Vlad's bullet sponges until they shuffled off to form Omega. Horses eventually absorbed them, but I always thought Phelan should have 'Harvest' those Wardens . . . but that could be the source of the Jihad Warden Wolf - Hell's Horses alliance.
Finally you have the Full Moon's convoy which arrived later; it transported 5 garrison clusters, a space station, portions of sibkos, supporting select lower castes, and enough parts & supplies to maintain a frontline Omni force. So at least 25 large cargo dropships . . . if you do not figure they had any supporting escort or other JS.