The Watchtower teaching on this subject gets a bit fuzzy if one asks too many questions about the theological ramifications of this teaching.
Yes. The "FDS" and the "domestics" are the same group, but viewed differently. The Rev Climax! book says on page 201 the following: "The slave, as a body, is responsible for supplying the food, but the domestics, the individual members of that body are sustained by partaking of the spiritual provisions . They are the same group but described in different terms - collectively, and individually"
This may be all very well, but the pratical application of this piece of wisdom has a glaring difficiency. For instance:This means that Ted Jaracz as part of a group of some 8,500 people is the FDS, but as an individual, when he reads the material he has contributed to, becomes a "domestic". Thus: When he writes a Watchtower article, he is part of the Slave, but when he studies what he has written, he is a "domestic".
I mean and all. Come on. You mean, he doesn't know what he has written, but has to study it as well? Then, these men "study" the material they have contributed to collectively, never individually. They meet, supposedly, at regular Watchtower studies, and along with the rest of the gathered "anointed" they study this material. So there is no partical difference between the individuals and the group.
Hi, Ted, are you really a member of the FDS?
Ted: What's today? Wednesday? Nope. Today I am studying what I wrote on Monday. So toaday I'm a domestic.
See? Logical as quicksand.
The other "non anointed" sheep are the other sheep whether considered as a group or as individuals. So what is sauce for gander is not sauce for the goose. By the way, they are the part of Matt 24:47 where it says "all His belongings" so: The FDS= the anointed as a group, the domestics= the anointed as individuals, who evidently teach themselves individually, and the "belongings"= the other sheep.
The other parts of your question also become murky in the telling. As far as we can tell it was Mrs R who first broached the subject of the FDS=CTR. There is no record of CTR actually admitting that he was the FDS publically, but we do have anecdotal evidence from his associates who confirmed that he declared this several times privately.
It was Rutherford, who when he felt sufficiently strong to break free from the straitjacket of Russellite theology, invented the FDS "class" doctrine. In fact this was one of his favourite buzz words. He made up the "Mordecai" class, the "Esther" class, the "Naomi" class, the "Ruth" class, and his particular favourite: the "clergy" class. Oh, there were others that were part of his creative writing expertise, but none of them are now in regular use.
The GB was established in 1971, which would have been when they were identified as the FDS. Knorr made the proviso that to be a member of the GB, one had to be of the FDS.
Whatever you do, don't mention the years 1919 or 1943 to a dyed-in-the-wool Watchtower follower. Throughout his years at the helm of the Watchtower Empire, JFR did not have the creative ability to unfold a concrete theology that explained Christ's "invisible" presence as occurring in 1914. He did make allusions to this date in some obscure passages of his literature, but whether these were ghostwritten for him by others is uncertain. Certainly he died believing that Jesus actually did come in 1874.
It was his evil genius of a disciple, Freddy Franz, who, in 1943 first outlined a detailed theology that explained 1914 as the date for Christ's "invisible" presence. When this detailed theology was unfurled, no attribution to the former date of 1874 was made, and those newly converted who had no inkling of CTR's 1874 date swallowed it whole. Which suited friend Freddy very nicely indeed.