Leonard Raphael ‘Len’ Ryder was a dental surgeon from Melbourne, Victoria, Australia.

Stanley Law Pearson was a dental surgeon from Ilkley, Yorkshire.

William Sims was a professor of microbiology at the University of London, Royal Dental Hospital.

Johnny died on 23 January 2018 aged 96 years. He was born in Leeds in 1921. At 14 he was apprenticed as a dental mechanic (technician). During this time he cycled from Leeds to Bradford to attend night school in order to gain further qualifications. At 19 he was called up into the RAF. Because of hi