The FBI file are just gossip. Not intelligence.
The files were put together in 1944. Homosexuality was illegal and homosexuals were held in disdain. Nowhere in the dossier does it say he was a paedophile, that's what Lownie surmised they are saying. We have no idea what age "young boys" refers to. But let's say it is actually children, there's no substantiation of anything. The only "evidence" was what one person said. Elizabeth de la Peor Beresford. It's just gossip from one person.
Anthony Daly. He doesn't know anything first hand. He says he "was told" so more unsubstantiated gossip.
I'd never heard of Norman Nield. I can't find his interview with the New Zealand Herald. But I agree, what he says carries weight for me. However Lowndes has said that the FBI files called LM a paedophile and they didn't, so I know that he takes licence to twist things. However, I feel sure NN must have said similar to what has been reported.
Kincorra House. That has been investigated and LM was held not responsible. Of course, it's perfectly possible it was a cover up by the powers that be. It's a dreadful period and I hope Arthur Smyth gets resolution and justice. As far as I know he's the only person to have made an allegation based on a recent realisation. I wish him the best.
LM has openly stated that he and his wife were promiscuous. But there's not a pile of evidence that he was a paedophile - just Norman Nields. So I can't say if he was not. I shall watch the court case and see the evidence there.