John Allsop, born Derbyshire England 1804, 1st wife Mary Ann Slater died in 1847.There is a marriage for a John Allsop to a Mary P. Clow on 18 Dec 1856 in neighboring Fayette County.Is this the same John Allsop? The 1860 Effingham census shows John Allsop with a wife Mary. She isn't shown on the 1870 census.Younger John Allsop is living nearby with wife Elizabeth A. All help appreciated. Thank you.