Bernard was the second son of John Waymouth and Eliza (nee Glanville).   His father was involved with ship building at dockyards in Wales and England and Bernard would have learned about ship design at those yards.   He joined Lloyd's Register of Shipping in 1853 as an Assistant Surveyor.   That was the time of rapid change from wooden to iron ships.   In 1868, Bernard's rules for the design of composite ships (iron and wood) were adopted.   In the same year he designed the famous ship "Thermopylae".   In 1870, Bernard's rules for iron ships were adopted and in 1872 he was appointed as the Secretary of Lloyds.   He held that position until his sudden death at Lloyd's offices in Cornhill in 1890.   The London "Times" reported that Bernard was "highly respected and much appreciated by all those interested in the mercantile marine of the country."   Bernard was married with no children.