Mrs Bryan and Children' Stipple engraving after the painting by Samuel Shelley. Margaret Bryan (active 1790-1815) English teacher, natural philosopher and author shown with her daughters and surrounded by scientific instruments. Mrs Bryan had a girls' school at Blackheath, London, where she taught astronomy and natural philosophy (science) to her pupils. Engraving for the frontispiece of 'A Compendious System of Astronomy' by Mrs Margaret Brown (1797). Photo via Newscom