Now didn't Peggy and Ewan have a similar role along with Lloyd in England?

To a degree but they weren't the only ones.
Certainly they taught me what little I know about voice projection and stagecraft (this may not enhance their reputation . . . !).
The myths of who Ewan was and what he would do know no bounds.
E.g. 'he never sang 'The First Time Ever' (he did) and he despised music hall songs (he didn't and did (occasionally) perform them. And so on . . .