I am at an age where I have been through a few too many funerals lately.
The women is going to be on autopilot. She is going to get far too much attention and food dishes in the next few days.
Then, after the funeral, she will find all the attention gone, and she will be all alone in her big, empty house.
I suggest you find out the date of the funeral.
Then send her a card, with a brief introduction, and an invitation to tea two days after the funeral. Telephone the day before to confirm.
