I was about to post, not only could I not find anything in 1841, but nothing found either in 1851, 1861 (John & Susan) or 1871 (Susan) and was going to ask if the deaths you had mentioned were in England ? But I think Keziah2 may have cracked the case and that your Susannah was widowed then married again to: William BARRELL
If John & Susannah married 1807 and son William ELLIS born 1814, I'd have thought there was a chance of their being children born before William…..looks like there was at least a daughter, Mary Ann ELLIS and I think she married a Daniel LONG in 1829:
CENSUS 1841: Lower Barclay St, Ipswich St Margaret, SuffolkHO107 / Piece 1043 / Folio 14 / Pg22
William BARRELL 50, Mariner - Y
Susan BARRELL 50 - Y
(the marriage of Widow Susan ELLIS to William BARRELL would hopefully confirm he was a mariner and that this is likely the correct Census)CENSUS 1841: St Helen's St, Ipswich St Helen, SuffolkHO107 /Piece 1043 / Book: 5 / Folio 21 / Pg13
Daniel LONG 30, School Master - Y
Mary A LONG 30 - Y
Lavinia LONG 12 - Y
Alfred LONG 8 - Y
Mary Ann LONG - 3 mths - Y
George KERRIDGE 11 - Y
CENSUS 1851: St Helen's Street, Ipswich St Helen, SuffolkHO107 /Piece 1800 /Folio: 374 / Pg21
Head: Daniel LONG 43, School Master House Agent & Accountant, b Norwich, Norfolk
Wife: Mary A LONG 42, b Stonham, Suffolk
Son: Alfred W. M. LONG 17, unm, Accountant, b Ipswich, Suffolk
Dau: Mary A L LONG 10, b Ispwich, Suffolk
Mother-in-Law: Susannah BARRELL widow, 63 , Pauper (Laundress), b Gosbeck, Suffolk
CENSUS 1861: 42 St Helens, Ipswich, SuffolkRG9 / Piece 1166 /Folio17 / Pg27
Head: Daniel LONG 53, House Agent & Proprietor of Houses, b b Norwich, Norfolk
Wife: Mary A LONG 53, b Stonham Apsal, Norfolk
Dau: Mary A L LONG 20, unm, Organist & Pianist, b Ipswich, Suffolk
Mother-In-Law: Susan BARRELL 73, widow, b Gosbeck, Suffolk
CENSUS 1871: 42 St Helens Street, Ipswich St Helens, SuffolkRG10 / Piece 1756 / Folio: 63 /Pg2
Head: Daniel LONG 63, House Agent (one Clerk), b Norwich, Norfolk
Wife: Mary Ann LONG 63, b Stonham Apsal
Servant: Minnie A SNELL 12, General Servant, b Ipswich
MARRIAGE 1829:https://familysearch.org/pal:/MM9.1.1/NL9J-4NGDaniel LONG
Mary Ann ELLIS
Married 21 May 1829, Suffolk
BAPTISM 1830: https://familysearch.org/pal:/MM9.1.1/JSV9-BQTLavinia Clara LONG, Chr 20 Dec 1830, St Helen's Ipswich
Parents: Daniel LONG & Mary Ann LONG
BAPTISM 1833: https://familysearch.org/pal:/MM9.1.1/NKX4-3BCAlfred Walter Memnon LONG Chr 18 Aug 1833, St Helen's Ipswich
Parents: Daniel LONG & Mary Ann
BAPTISM 1841:
https://familysearch.org/pal:/MM9.1.1/JSL6-9Q2Mary Ann Louisa LONG Chr 30 May 1841, St Helen's Ipswich
Parents: Daniel LONG & Mary Ann
The above Susannah BARRELL says born Gosbeck....and:
The following webtree:
http://www.grimwoodons.webspace.virginmedia.com/holden/d1.htmSusan HOLDEN chr 27 Jun 1787 Gosbeck, dau of John HOLDEN & Susan SMITH
Cheers
AMBLY