I had a look at the John Ells situation in the 1851 census and found the following:
ELLS John Canard 003
ELLS John Cornwallis Dist 2 004
ELLS John C Canard 004
ELLS John E Centreville 002
ELLS John W Canard 003
Then I looked at the ones in my data base and came up with;
John b. 25 Mar 1789, son of Daniel Ells and Elizabeth Bennett
John b. 2 Jan 1787, son of Samuel Ells and Rebecca Amelia Sanford m. Olive Loomer
A supposed John Ells who would have been Caroline Ells husband before marrying Isaac Bennett
John C. Ells m. Mary Jackson
John DeWolfe Ells - but he was living in Shelburne Co. by then
John Eaton Ells, b. 1819, m. Rachel Gilmore Chase
John H. Ells b. 1826, but he may not have had a place of his own yet since he didn't marry Julia Ann White until 1858.
John Woodworth Ells b. 1817, son of Perry Borden Ells and Elizabeth Woodworth
So it looks to me that a possible match for our missing John Ells could be the one born in 1789, although that makes him much older than Caroline, although it could also help explain why she was a young widow too. It's an avenue to explore. Does anyone have any further info on the John Ells b. 25 Mar 1789, son of Daniel Ells and Elizabeth Bennett?
Who were the parents of this Isaac Bennet b. abt 1808?