Hi,
See this thread from 2014 - Jane clearly looks about 18 in that photo, not 30 and it all fits. What I think has happened is as JF's birthdate isn't out in public knowledge, someone went looking, completely forgetting that Freeman may not be her real name. So they came up with 1921 and hence confusion. Sadly, not only is she dead (very sorry to hear this), but was born when the Stage and the Times said she was, I'm confident of that. It all points that way when you look at her on the TV - http://www.summerwine.net/community/threads/what-age-is-jane.12269/