Hunter Gandee started the long trek with younger brother Braden, who suffers from cerebral palsy, on the morning of June 5 in Lambertville, Michigan, an unincorporated community near the Ohio border.

Dr Trant was joined by members of her family, St Swithun’s headmistress Jane Gandee, Richard Roberts from Innovate UK and some of the school community to unveil the plaque outside of the science ...