Hello Kathb,
Its a puzzle, but a few census records, just to try to clear the mist (or maybe make it less clear) and for others who may be able to help you more.
1851 census, Crosby Garrett, Westmorland,
Edmund Calvert, head, 22, Ag. Labourer, b. Yorks Spittle,
Elizabeth Calvert, wife, 21, b. Westmorland Crosby Garrett.
1861 census, South Shore Gateshead :
Edmund Calvert, head, 32, Wine Rope Sticker (I think), b. Yorks Bowes,
Elizabeth Calvert, wife, 31, b. Westmorland Crosby,
Ann Allenby, niece, 13, b. Durham.
1871 census, 16 Walton St. Jarrow, Red Lion Inn,
Edmund Calvert, head, 41, Inn Keeper, b. Yorkshire NR,
Fanny Calvert, wife, 32, b. Sussex Chairley,
Mary E. Calvert, dtr, 8, b. Cumberland Mansition (?),
Emily Calvert, dtr, 5, b. Cumberland Mansition (?),
Ellen Smith, niece, 5, orphan, b.Jarrow,
Thomas Hill, boarder, 32, shipbuilder, b. Scotland,
Ellen Hill, wife, 24, b. Sussex Chairley.
In 1881 and 1891 census Edmund, now called Robert Davies (b. Yorks Bowes in 1881, and Yorks Spittal in 1891), is living with Fanny (b. Suffolk Chairley in both) and children :
Edmund, 6 in 1881, b. Lancs Barrow,
Charles, 3 in 1881, b. Birkenhead,
Lydia, 6 months in 1881, b. Birkenhead.
There is a marriage on FreeBMD of an Edmund Calvert in Mar qtr 1851 in Askrigg North Yorks, could be his first marriage to Elizabeth.
From 1871 onwards he is living with Fanny Cottington (Ellen Hill, living with them in 1871 is her sister), but I can't see a death for Elizabeth, or a marriage to Fanny. In 1881 in Birkenhead, there is an Ellen Smith, aged 15, domestic servant, b. Jarrow, so it looks like she went with them (could be either Edmunds or Fannys niece). But were Mary E. and Emily in 1871 Edmund and Elizabeths children, or Edmund and Fannys children, or Fannys previous children?
More questions than answers sorry.
Alan.