Richard Nicholson was the son of George Nicholson, solicitor. He married first, Marion, and 2nd, Catherine Leicester.
Nicholson became a solicitor in 1851, Clerk of the Peace in 1869, and 1st Clerk of the Peace, London, in 1888. He received a knighthood in 1886.
'Sir Richard Nicholson', The Times, London, Tuesday, 18 March 1913, p. 11.