In her collected letters, Frances Rolleston defended women's abilities as scientists. I'm sorry that Janet Taylor's name doesn't appear in Frances' letters, but perhaps Frances did not know the great contribution Janet made to navigation.
They might have been good friends. They shared a love of the starry heavens (Janet drew and published a Planisphere of the Stars), they were both Christians who honored the Creator, and they also lived in the same areas of London, though at different times.
One of Janet's great contributions to the safety of sailing vessels was to adjust ships' compasses to overcome deviations due to the increasing use of iron in ship building. She developed instruments to improve navigation and diligently corrected charts to reflect newfound hazards throughout the world.
This is one biography I thoroughly enjoyed reading.
Click on the image to go to the Amazon page.