Old friends specially who have helped one in times of need are cherished in the deep of memory chests never to be forgotten.
Knowledge is power.
Practically I could not stay with my mother for long. After she died, I regret that I do not know much about my mother's younger days like her schooling etc.As far as she was alive I had not felt to ask about such things also. Now I feel that I have only bits and pieces of knowledge on those matters . Many times I imagined to meet her old friends and ask the details from them. It never happened and I could not get opportunity to ask from her siblings also.
I consider you as lucky in this regard in getting to met your mother's old friend.
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease
Caution: Explosive. Handle with care.