It looks like Jane was born before the Marriage.
Possible Birth Reg;
JOHNSON, JANE - no mothers maiden name, so illegitimate -
GRO Reference: 1854 J Quarter in MORPETH Volume 10B Page 221
(GRO)
FreeBMD
Marriage Reg;
Sept 1856
JOHNSON Margaret Newcastle Tyne 10b 172
Robert SWAN on same page
Mabel is not reg until after the Marriage.
You will have to buy the Cert to find more about Margaret/Robert as M/C does not appear to be on line or in anyones Trees.
Having said that I think this is Margarets Baptism on FreeREG;
28 Sep 1834, St Mary the Virgin, Morpeth
MARGARET Johnson, Daug of WILLIAM/MARY
Abode Cottingwood
Father a Woodsman
1841 Census Morpeth;
William Johnson 30 Woodsman
Mary Johnson 30
George Johnson 9
Margaret Johnson 7******
Ann Johnson 5
William Johnson 3
1851 Census
William Johnson 40 Woodman born Morpeth
Mary Johnson 42
George Johnson 18
William Johnson 13
Jane Johnson 9
Barbara Johnson 6***
Robert Johnson 4
GRO
JOHNSON, BARBARA mothers maiden name MARSHALL**
GRO Reference: 1844 J Quarter in THE MORPETH UNION Volume 25 Page 30
Marriage on FreeREG 29 May 1831 Morpeth William Johnson to Mary Marshall
Bapts on FreeREG also for SWAN
Parents ROBERT/MARGARET
Mabel 10 May 1857
Alice Singleton 19 Mar 1865
Thomas Antony 19 Jul 1868
Mary Hannah 1 Oct 1871
Cant see a baptism for John W Swan born c 1860
Trish
