I have an ancestor, Thomas Harwar born 1716 in Cheshire who was a lawyer. His Son, Richard was also an Attorney At Law. Richard's son, John was born in Congleton, Cheshire and was a clark to a law stationer in the 1851 Census living in 11 Hemlock Court, St Clement Danes, Westminster. Could be a connection as it is an unusual name and not a common occupation.