Sarah,
Below is all the information I have gathered over many years, some of which you probably know.
My gt./gt. grandfather Francis PARKER first married Mary SUTTON (unknown date) and their children were:-
Thomas 1831 m. Elizabeth Britland
Bethia 1834 m.John Scanlon
Francis 1837 m. Mary Holmes
Enoch 1840 died age 2 years
John SCANLON and Bethia PARKER had a daughter Helena (I think later known as Ellen) who in 1882 at Trinity Church, Northwood, Staffordshire, married Jervis BATH. Jervis was age 23 and Ellin age 19. Jervis was a traveller and his father was Solomon BATH.
I don't know when Francis's first wife Mary SUTTON died but in 1866 at Chesterfield, Derbyshire
Francis married Mary Ann HOULT both widowed. Mary Ann's father was named as Thomas CALLADINE so she must have been married to a HOULT before her marriage to Francis.
In 1871 Michael HOULT is living with Francis and Mary Ann. Also at the same address is Eliza HOULT age 19 and Ellen PARKER age 9.
In 1881 Francis and Mary Ann are lodging with Ellen PARKER and Jervis BATH age 23 (they married the following year) .
When Mary Ann PARKER died in 1884 her grand daughter Ellen BATH was present at the death.
I do hope some of the above is helpful.
Regards,
Margery