Henry William Watson
Rev. Henry William Watson (25 February 1827, Marylebone, London – 11 January 1903, Berkswell near Coventry) was a mathematician and author of a number of mathematics books. He was a Cambridge Apostle.
He was educated at King's College London and at Trinity College, Cambridge. He graduated as second wrangler and Smith's prizeman in 1850, Dr. W. H. Besant being senior wrangler. He became fellow in 1851, and from 1851 to 1853 was assistant tutor. Watson formed a close friendsbip with James Fitzjames Stephen, who entered Trinity in 1847. 
Books by H. W. Watson
- The mathematical theory of electricity and magnetism (Volume 1: electrostatics) (Clarendon, Oxford, 1885–1889)
- The mathematical theory of electricity and magnetism (Volume 2: magnetism & electrodynamics) (Clarendon, Oxford, 1885–1889)
- A treatise on the application of generalised coordinates to the kinetics of a material system (Clarendon, Oxford, 1879)
- A treatise on the kinetic theory of gases (Clarendon, Oxford, 1893)
- O'Connor, John J.; Robertson, Edmund F., "Henry William Watson", MacTutor History of Mathematics archive, University of St Andrews.