I spent some time in the late 80's - early 90's with Atlantis ('The Screamers') during the time they were selling off their property in Donegal and finalising their move to Colombia.
I loved the island and I loved the self-sufficiency stuff. They really were very good at that and I learned a lot of practical skills from them which I have found extremely useful ever since.
I never experienced the full force of the therapy side of things, nobody had primal screaming sessions while I was there. There was though a huge emphasis on 'having your feelings' - if someone was being snarky or passive-aggressive or moody they would be called out and encouraged to express their feelings directly with the person they were pissed off with so it didn't fester. There were frequent blazing rows which everyone was encouraged to witness and 'help with' (I was never sure how) and I found this quite frightening. But also it had never properly occurred to me before that it was OK to be angry and to say what I honestly felt and the world would not end. I'm grateful for that lesson as well as the practical skills. But mostly it was really bloody tedious. There would be some big community project planned like cutting turf or rebuilding a greenhouse and it just couldn't happen until everyone had 'had their feelings'.
They believed in traditional gender roles. There were no restrictions on what anybody of either sex did but the kind of work traditionally assigned to women - child rearing, cooking, cleaning, laundry, making a nice home etc. was very highly valued and there was a definite belief that women were better at these things and that men should focus on the jobs that most needed physical strength.
They had no doubt about who was male and who was female. They had had trans visitors in the past and were not fans because they saw it as false and artificial. They also recognised AGP when they saw it although they obviously didn't use that term back then. They were fine with men wearing skirts, make up etc. to explore their 'feminine' feelings, as long as they did it as men.
I once had tea at the Silver Sisters's house in Burtonport. I think it was 'Miss Martindale' who met us. I had just tagged along with someone who had an appointment with them about the property, which was still owned by Atlantis - can't remember whether it was about the sale of the property or SS's massive rent arrears, probably both. I was briefed on the way that this was a lesbian victorian spanking fetish thing, possibly a brothel, and that they were really quite weird and unhealthy. The whole situation seemed very sad. The house was very cold and unheated and this woman appeared to be living there on her own with massive rent arrears and no income. I got the impression they had very few visitors. Turns out victorian spanking RP is a peculiarly English fetish. Who knew? She wasn't in victorian dress when I met her but she was still very obviously playing a role. She came across as false but also brittle, as if the whole charade might fall to bits at any moment.
I can confidently say that the only link between the two groups was that when Atlantis moved to the island they rented the house on the mainland to the Silver Sisters. Atlantis were very scathing about their tenants because they didn't approve of kink - they saw it as a way of avoiding connecting with the person you were having sex with. Almost undoubtedly this property deal would have come about through an ad in Communes Network, a publication that went out to loads of 'intentional communities' as well as individuals interested in joining or forming one. You'll probably find rich pickings in old CN newsletters if you can find them, also in the yearly 'Diggers and Dreamers' directory.
Other things:
Atlantis had an old signed letter from Arthur Janov disowning their version of primal therapy and asking them to stop it. They kept the letter because they found it very funny.
Snowy James is definitely not 'Miss Martindale', she had nothing to do with the Silver Sisters. Snowy had already gone to Colombia by the time I was there. She's pictured here (right) with Jenny (left) on the steps of the house in Burtonport:
victorpatterson.photoshelter.com/image?&_bqG=1&_bqH=eJxLcQ4pdkoNMXXxLk8z9AvL003Mz3J0TDIM9Mi2MrYyNDAAYSDpGe8S7GwbnJdfXqntlZibWqwGFol39HOxLQGyQ4Ndg.I9XWxDQaotk83LApMTw_M8ktXiHZ1DbItTE4uSMwDybiEZ&GI_ID=
Atlantis grew out of a group called People Not Psychiatry which was based in London in the early 70's, I think this was also led by Jenny James. They moved first to the house in Burtonport, then to the island of Innisfree, then to Colombia. They also had a big sailing boat (a Norwegian Ketch) in Baltimore called the Atlantis Adventure. It needed a lot of work doing but the plan was for the remaining people in Ireland to sail across the Atlantic and join those in Colombia. As far as I know that plan didn't happen, I think the cost of restoring the boat just grew and grew and in the end they cut their losses and flew out.
I don't know if they're still going. Their website is still up but it hasn't been updated for a few years:
www.macsuibhne.com/atlantis/atlantis2.html
I can't see anything on there now about therapy or primal screaming. I think they were moving away from that stuff when I encountered them over 3 decades ago. Their 'How to get here' page has a summary of their current philosophy (if they're still going) which rings true from what I know about them:
www.macsuibhne.com/atlantis/directions.html
FARC kidnapped and brutally murdered Jenny's grandson and another young commune member. The Green Letters on the above website have lots of details about what happened. I haven't read the letters in depth and I don't know much about Colombian politics but I have heard that just being foreign was sometimes enough to get you killed.
You might consider Atlantis a cult but having thought about it a lot over the years, I honestly don't think they were, I think they were just a hippy commune with some strange ideas. There was never pressure to join or to stay, it was fine to disagree about things and have a normal discussion or argument. Nobody was really in charge and the only hard rules were no meat and no tobacco. They had good relationships with lots of ex-members and they had lots of short and long term visitors. They never asked for money but everyone was expected to help out with practical work.
OTOH a fair few people had a thoroughly bad time there and relationship breakdowns were common. I don't believe there's anything particularly sinister about this. I think it's just not a very good idea, on balance, to express exactly what you think and feel, all the time, to everyone around you.
I haven't seen any evidence that they or any of their members were part of any controversial networks, the only links they seem to have formed were with local environmental campaigns. I visited a few other intentional communities around the same time and the word was that Atlantis were a bit weird but but kept themselves to themselves.