Whyte notation
The Whyte notation for classifying steam locomotives by wheel arrangement was devised by Frederick Methvan Whyte, and came into use in the early twentieth century following a December 1900 editorial in "American Engineer and Railroad Journal". The notation counts the number of leading wheels, then the number of driving wheels, and finally the number of trailing wheels, groups of numbers being separated by dashes. Other classification schemes, like UIC classification and the French, Turkish and Swiss systems for steam locomotives, count axles rather than wheels.
Rowland Whyte
Rowland Whyte (died after 1626) was an Elizabethan official and businessman, whose letters provide important evidence about the latter stages of the life of Queen Elizabeth I and the transition to the rule of James I. The letters were first published in 1746 as "Letters and Memorials of State", edited by Arthur Collins.