They were indeed in Monkwearmouth in the 1851 census. HO107/2398 folio 25. Bottom of the page. Tinkers Row Greenwell, Ralph, head, married, 24, coal miner, Northumberland, Wallsend Greenwell, Alice, wife, married, 25, Northumberland, Benton Greenwell, Jane, daur, 7 mo, Durham, Monkwearmouth If you would like the image contact me off list. Janis