The husband of an ancestor of mine was a man called Edward Webb, born 1870 in Essex. He (and his wife) trained as school teachers, but by 1911 Edward was decribed as being a 'Science Lecturer,' and the couple's lodger as a 'Lecturer, Hygiene and Physical Exercises.' Would Edward and his colleague have been teaching at some kind of college, or at a private school, perhaps? The address they were living at was 81 Highbury Quadrant, Islington, if that helps. If anyone can shed some light on this mystery, I'd be grateful!