K.P.
Make a donation in here name if you would like. The family will be notified.
I can also assure you that it is never too late to send a card to the family. I would send a sympathy card to her parents (you don't know her spouse and children) simply stating that you just heard of her passing and that you wanted to express your condolences and share a fond memory of her.
They are sad every day and knowing that people still think of her will likely be more comforting than upsetting.