Can the internet help here?
I read this article with great interest about professor Rebecca Roach's inability to find the woman who was Joseph Weizenbaum's secretary at MIT in the 1960s in the department of electrical engineering when he developed the pioneering AI chatbot, ELIZA.
The secretary played an important role, but after an extensive archive and records search, Roach still couldn't find her name.
I feel like this is an "internet, do you thing" problem.