Thanks for the reply, Margaret. I'd been told so many different things about what acute mania meant. When I got my grandmother's death certificate, that is what was listed as the cause of death. My Mom had been told that her mother died of hepatitis. She had also been told that her mother died when she was 6 years old, when in fact, my Mom would have been 7-1/2 when her mother actually died. So evidently when my grandfather had to put her away, he felt it was easier to tell the children that their mother had died. I'm sure back in the 1920's a mental ward of a hospital was no place to take children to visit their mother. And she may not even have known who they were anyway. It's all rather sad.
Carole