In the Ham Radio Operators group on Facebook, a fellow ham from Bellingham, Washington shared a poster he had found. Within the thread of comments, someone shared an article about the picture and its history, which included some history of women and their struggle for relevance in the early wireless telegraph days. In particular, those involved on ships.
The story followed a Miss Graynella Packer, how she got into the business of wireless telegraphy, and how her ear for music helped her hone in on and separate different transmissions of morse code. It is a very interesting read.
The article, in PDF form: Radio Age, The Newsletter of the Mid-Atlantic Antique Radio Club from December 2007