John was a coal miner and amateur astronomer who lived and worked in Codnor, England. Codnor is in Derbyshire County. It was the largest coal mining district in England.
(It's a complete guess that he was born around 1810.)
John and Elizabeth married in 1830.
(The information here comes mainly from a two-page Swinscoe family history that Joyce (Freestone) McClellan had. It's unclear who wrote it.)
Have you taken a DNA test? If so, login to add it. If not, see our friends at Ancestry DNA.