Henrietta is a coach that travels with Toby on his branch line, Percy or Daisy takes her when Toby is absent.
After Toby's tramway in East Anglia closed, Henrietta was brought with Toby to The Fat Controller's Railway, Toby later mentioned to the Fat Controller that a stationmaster on his tramway wanted to use her as a henhouse, but The Fat Controller agreed 'that would never do'.