Towards the end of December, I came across an excellent interview conducted with Emmett’s close friend Minnie Kehoe. The text of the interview is below, along with the original source information.
Note that this wasn’t exactly an in-person interview; Minnie apparently took issue with one of the articles published by The Typewriter and Phonographic World, sent extensive comments supported by data, and included a photograph of herself — talk about a sistah who was sassy AND thorough.
This was an excerpt of the interview, by the way. Page 279 of the same publication is another (different) article.
You can find the article, published in The Journal of Commercial Education, volume 24, at this link.