My understanding is that Louise Gavan Duffy was headmistress of a girl's school in Dublin (the first one, actually).  As the Easter Uprising happened to occur at the same location, she converted the school into a field hospital.  This hardly makes her non-peaceful, as the trivia comment implies.  Unless the author can muster evidence that she engaged in violence, the implication ought to be dropped.

Gavan Duffy
gduffy@syr.edu