I spent some time singing etc (ie boozing) with Dominic, Brendan's "over-shadowed" brother. Dom's biography of Bren is worth reading (one gets the impression that both were permanently pissed to the point of impotence), as is his "novel" Parable Jones. Latter more than hints that Bert Lloyd preferred horses & men -- but this I think was "revenge" following Bert's criticism of Dom's "Posterity Be Damned."
Bert's summary: "Nothing to declare."
I was in the cast of MacColl/Seeger's "Ballad of John Axon" together with Dominic and Bert. Observed at close hand the rivalry twixt them.
Dom was skeptical of the "donnish-folk" attitude of Ewan and Bert.
Eg of the latters' Chanteys: "Bejayz they'ld get f***n' sea-sick in a rowing boat"

BTW: at least when he was in UK rather than Oz, AL Lloyd seemed totally hetero -- indeed, dubbed a "womanizer" -- one can't win, can one.
Another Oirish euphemism: "amphibious!"
And, of course, the jails were full of "quare fellahs?"