Hetty Kindred

 was a doctor who was looking into the speciation formulae. George Litefoot went to visit her and she told him about her work. Carruthers Summerton found it weird that she was an educated woman. Her experiments were sponsored by Hartley Harecourt. She worked on an antidote to Harecourt's formula to cure Henry Gordon Jago. (AUDIO: The Case of the Missing Gasogene)