Biography
This Elderly Lady is in fact Marnie. It is discovered as you watch the film that Marnie is in fact Anna's late grandmother.
Appearances
Elderly Lady FAQ
What anime is Elderly Lady from?
Elderly Lady is a character in When Marnie Was There.
What is Elderly Lady's Japanese name?
Elderly Lady is written 老婦人 in Japanese.
Where can I watch Elderly Lady?
Open the When Marnie Was There page for licensed streaming links and the full episode list.