John Bicknell solicitor to the Admiralty and the Prince Regent, became father-in-law to John Constable. His eldest daughter Maria Elizabeth Bicknell married Constable in 1816. John Bicknell John Bicknell, the elder (baptised 1746 – 1787) was an English barrister and writer. He was co-author with Thomas Day of the abolitionist poem "The Dying Negro" from 1773. Bicknell has also been credited with "Musical Travels through England", a pseudonymous satire on Charles Burney. The second son of Robert Bicknell of the Inner Temple, he was admitted to the Middle Temple in 1761. He was called to the bar at Lincoln's Inn in 1769.
Elhanan Bicknell learn farming; but at the end of a year this project was abandoned. Bicknell returned to London late in 1808 and soon after he joined a business run by his uncle, John Walter Langton (1746-1822). Langton had established himself as a tallow chandler at Newington Butts , about a mile south of London Bridge, by 1788. Bicknell became a partner in the business about 1809 and the following year he married Langton's daughter, Hannah. She was the first of his four wives with whom he had a total of thirteen children. The business partnership was also productive and saw the