I am very happy today to see google celebrating
Caroline Herschel's birthday - I don't think she ever quite turns up in the books, but she's a friend of Jack's, so surely that counts :)
She had already read my paper on the Jovian moons, was more than civil about it, and suggested a quicker way of working my heliocentric longitudes. I go to see her every time she comes down to Newman's observatory, which is pretty often, and we sit there either sweeping for comets all night or talking about instruments.