Sussannah Snook Willis
birth: 1833 Dunkerton, Somerset, England, United Kingdom
death: 12 April 1917 Heywood, Victoria

Marriages:
Spouse
Peter CARTER
birth: 1812
marriage: 2 March 1853
death: about 1889

spouse:
william PRING
marriage: 21 December 1876
death:


Parents:
Sampson Morris Willis
birth: 1810 Combe hay, somerset, England
death: November 1881 Bath, Somerset, England

Sarah Ann Bellringer Snook
birth: 1807 Preston, Somerset, England
death: 12 March 1894 Bath, Somerset, England

Parents of Morris:
John Willis
birth: 21 July 1772
death: 25 August 1847

Mary Morris
birth: 1790
death: 28 February 1877

Parents of Sarah:
William Snook
birth: 1783
death: 1862

Susanah Bellringer
birth: 1779
death: 11 April 1872

Not sure how good this info is but worth checking it out

These sites might be useful:

https://familysearch.org/search

http://freepages.genealogy.rootsweb.ancestry.com/~hughwallis/IGIBatchNumbers/CountySomerset.htm#PageTitle

Her arrival in Victoria

Victoria, Australia, Assisted and Unassisted Passenger Lists, 1839?1923 about Susanna Willis
Name: Susanna Willis
Estimated Birth Year: abt 1834
Age: 19
Arrival Date: 5 Jan 1853
Arrival Port: Geelong and Victoria, Australia
Departure Port: Plymouth
Ship: Time And Truth
Nationality: English and Welsh

listed as Domestic Servant from County of Somerset

Marriages

Australia Marriage Index, 1788-1950 about Susannah Snook Willis
Name: Susannah Snook Willis
Spouse Name: Peter Carter
Marriage Place: Victoria
Registration Place: Victoria
Registration Year: 1853
Registration Number: 23851


Australia Marriage Index, 1788-1950 about Susannah Snook Carter
Name: Susannah Snook Carter
Spouse Name: William Pring
Marriage Place: Victoria
Registration Place: Victoria
Registration Year: 1876
Registration Number: 4783

copies of the marriage should give you her fathers name

William & Susannah Pring are on the Victorian Electoral Rolls
1903, 1909 & 1914 in Lyons Wannon Victoria, Williams Occ: Farmer

Australia, Electoral Rolls, 1903-1980 about Susannah Pring
Name: Susannah Pring
Gender: Female
Electoral Year: 1914
State: Victoria
District: Wannon
Subdistrict: Heywood

her Death

Australia Death Index, 1787-1985 about Sus??nah Snooks Pring
Name: Sus??nah Snooks Pring
Death Place: Heywood, Victoria
Age: 84
Father's Name: Morris Samson
Mother's name: Ann
Registration Year: 1917
Registration Place: Victoria
Registration Number: 5203
Estimated Birth Year: abt 1833

Father possibly Sampson Morris
Mother possibly Sarah Ann

1841 Census


1841 England Census about Susanna Willis
Name: Susanna Willis
Age: 8
Estimated Birth Year: abt 1833
Gender: Female
Where born: Somerset, England
Civil Parish: Dunkerton
Hundred: Wellow
County/Island: Somerset
Country: England
Household Members:
Name Age
Sampson Willis 30 Occ: Ag Lab
Sarah Willis 30
Susanna Willis 8
William Willis 6
Helen Willis 3

1851 Census

1851 England Census about Susannah Willis
Name: Susannah Willis
Age: 18
Estimated Birth Year: abt 1833
Relation: Daughter
Father's Name: Sampson Willis
Mother's name: Sarah A Willis
Gender: Female
Where born: Dunkerton, Somerset, England
Civil Parish: Dunkerton
Household Members:
Name Age
Sampson Willis 40, Head, Parish Officer b Coombahy??
Sarah A Willis 43, wife, B Priston Somerset
Susannah Willis 18, daug,
William Willis 16, son
James Willis 10, son,
Sampson Willis 6, son,
Angelia Willis 3, daug,
Amelia Willis 4 Mo daug,

all children born Dunkerton Somerset

a copy of one of the childrens births may provide marriage date

Births Sep 1841
Willis James Bath 11 41

Births Jun 1844
Willis Sampson Bath 11 45

Births Dec 1847
WILLIS Angelina Bath 11 39

Births Dec 1850
Willis Amelia Bath 11 44

1861 Census

1861 England Census about Sampson Willis
Name: Sampson Willis
Age: 53
Estimated Birth Year: 1808
Relation: Head
Spouse's Name: Sarah A Willis
Gender: Male
Where born: Combe Hay, Somerset, England
Civil Parish: Monkton Combe
Ecclesiastical parish: Bathand Wells
County/Island: Somerset
Household Members:
Name Age
Sampson Willis 53, head, Occ: Relieving Officer
Sarah A Willis 54, wife, born Priston Somerset
Sampson Willis 16, Son, Occ: Stone Carver
Angelia Willis 13, daug, Occ: Dressmakers Apprentice
Amelia Willis 10, daug, Scholar


1871 Census

1871 England Census about Sampson M Willis
Name: Sampson M Willis
Age: 60
Estimated Birth Year: abt 1811
Relation: Head
Spouse's Name: Sarah A Willis
Gender: Male
Where born: Combe Hay, Somerset, England
Civil Parish: Monkton Combe
Ecclesiastical parish: Combe Down
County/Island: Somerset
Country: England
Household Members:
Name Age
Sampson M Willis 60, Head, Relieving Officer
Sarah A Willis 63, wife,
Amelia Willis 20, daug, Dressmaker
Emma W Willis 4, grand-d, b Lower Mitcham, Surrey


1881 Census

1881 England Census about Sampson M. Wiilis
Name: Sampson M. Wiilis
Age: 70
Estimated Birth Year: abt 1811
Relationship to Head: Head
Spouse: Sarah A. Willis
Gender: Male
Where born: Combe Hay, Somerset, England
Civil Parish: Monckton Combe
County/Island: Somerset
Country: England
Street address: 7 De Montalt Pl (Ladies School)
Marital Status: Married
Occupation: Supurneated Rub Off (Superintendent Rel. Off.)
Registration district: Bath
Household Members:
Name Age
Sampson M. Wiilis 70. head
Sarah A. Willis 74, wife
Amelia Wiilis 30, daug, School Mistress
Emma W. Willis 14, grand-d, scholar, born Mitcham Surrey
James W. Willis 8, boarder, born Keynsham Somerset
Frederic J. Riddle 5, border, born Combe Somerset

Sampson Death

Deaths Dec 1881
WILLIS Sampson Morris 71 Bath 5c 364


1891 Census

1891 England Census about Sarah Ann B Willis
Name: Sarah Ann B Willis
Age: 84
Estimated Birth Year: abt 1807
Relation: Head
Gender: Female
Where born: Priston, Somerset, England
Civil Parish: Combe Monckton
Ecclesiastical parish: Holy Trinity
Town: Combe Down
County/Island: Somerset
Household Members:
Name Age
Sarah Ann B Willis 84, widow, living on her own means
Amelia Willis 40, daug, lodging house keeper
Katherine A Wasson 7, boarder (Watson)

Sarah's Death

Deaths Mar 1894
Willis Sarah Ann B 87 Bath 5c 474

England, Select Marriages, 1538?1973 about Sampson Willis
Name: Sampson Willis
Gender: Male
Marriage Date: 29 Jul 1832
Marriage Place: St John Baptist'S, Bristol, Gloucester, England
Spouse: Sarah Ann Bellinger Snook
FHL Film Number: 1595675


You could try this site, they may be able to help find the transcript of the marriage or at least point you in the right direction

http://www.gloucestershire.gov.uk/archives/article/107703/Archives-Homepage