FOUND IT!!! It's No Room At The Inn (1948).
My mother remembers an English film about a woman taking care of poor children (fostering?). The children were playing with her hat while she was away, and on her return she finds the hat with the feather broken. She demands "Who's Broke My Bleedin' Feather?!!"
Can anyone recall the name of this film please? Thanks!
FOUND IT!!! It's No Room At The Inn (1948).