I'm struggling to find them as well! Not baptised under Watkins/Higgins or Malson in the Forest. I suppose they might have been non conformists (or even non religious). This looks like the marriage's of Alice jnr & Edith:

Marriages Sep 1902 (>99%)
--------------------------------------------------------------------------------

Atkins William John Pontefract 9c 158
Hardisty Mary Ann Pontefract 9c 158
Malson Alice Roseina Pontefract 9c 158
Simpson John Willie Pontefract 9c 158

Marriages Sep 1909 (>99%)
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BRAHAM John Pontefract 9c 187
MALSON Edith Pontefract 9c 187
WARD Frank Pontefract 9c 187
WILSON Sarah Jane Pontefract 9c 187
------------------------------------------------
Little Reuben

Births Jun 1890 (>99%)
--------------------------------------------------------------------------------

Malson Reuben Henry Pontefract 9c 134

I wonder if this is Thomas marrying another Alice in 1882? He's the right age and father's name is the same. If it is, then he wasn't the father of the three girls. I've just noticed it says 'Bachelor' but they wouldn't put 'divorced' in those days would they?

Record_ID: 3210
Entry Number: 346
Year: 1882
Month: Oct
Day: 15
Groom Surname: HIGGINS
Groom Forenames: Thomas
Groom Age at Marriage: 24
Groom condition: Bachelor
Groom Rank or Profession: Labourer
Groom Residence: Cinderford
Groom Father's Surname: Higgins
Groom Father's Forenames: Henry
Groom Father's Rank or Profession: Labourer
Bride Surname: READ
Bride Forenames: Alice
Bride Age at Marriage: 19
Bride Condition: Spinster
Bride Rank or Profession: [not stated]
Bride Residence: Cinderford
Bride Father's Surname: Read
Bride Father's Forenames: James
Bride Father's Rank or Profession: Labourer
Licence or Banns: Banns
Date of banns:
Signature or Mark: He signs; she marks
Witness 1: Thomas Meredith
Witness 2: Ann Meredith
Other witnesses:
Officiating Minister: T.A. Beattie
Event type: Marriage
Memoranda:
Transcriber's Notes:
Register Reference: P85/1 IN 1/5
Page No: 173
Parish_Chapel: Cinderford St Johns
Soundex Groom: H252
Soundex Bride: R300

I think the 1881 rules out the marriage to HIGGINS in 1877.

1871
Henry Watkins 35
Sarah Watkins 30
Charles Watkins 3
Eliza Watkins 6
Henry Watkins 1
Mary Ann Watkins 8
Charles Boules 17

1881 Bilson Green
Henry Watkins abt 1839 Bream, Gloucestershire, England Head Westbury On Severn - East Dean, Gloucestershire
Sarah Watkins abt 1841 Yorkshireley, Gloucestershire, England Wife Westbury On Severn - East Dean, Gloucestershire
Alice Watkins abt 1861 Yorkshireley, Gloucestershire, England Daughter Westbury On Severn - East Dean, Gloucestershire
Charles Watkins abt 1868 Ruspidge, Gloucestershire, England Son Westbury On Severn - East Dean, Gloucestershire
Elizabeth Watkins abt 1873 Ruspidge, Gloucestershire, England Daughter Westbury On Severn - East Dean, Gloucestershire
Emily Watkins Ruspidge, Gloucestershire, England Daughter Westbury On Severn - East Dean, Gloucestershire
Henry Watkins abt 1870 Ruspidge, Gloucestershire, England Son Westbury On Severn - East Dean, Gloucestershire
Rosetta D. Watkins abt 1878 Ruspidge, Gloucestershire, England Daughter Westbury On Severn - East Dean, Gloucestershire

a clue in birth place for Alice ?

Name: Alice Rosena Moll_On
Year of Registration: 1882
Quarter of Registration: Apr-May-Jun
District: Bedwelty
County: Monmouthshire
Volume: 11a
Page: 88

Name: Emily Malsom
Year of Registration: 1884
Quarter of Registration: Apr-May-Jun
District: Westbury On Severn
County: Gloucestershire
Volume: 6a
Page: 263

Name: Edith Malsom
Year of Registration: 1886
Quarter of Registration: Jul-Aug-Sep
District: Westbury On Severn
County: Gloucestershire
Volume: 6a
Page: 249

Name: Roubin Malson
Name: Alice Watkins
Year of Registration: 1891
Quarter of Registration: Jan-Feb-Mar
District: Pontefract
County: Yorkshire - West Riding, West Yorkshire
Volume: 9c
Page: 143

I think Reuben was born prior to the marriage of George MALSON hence the maternal BANNISTER name.

Name: Reuben Bannister
Year of Registration: 1858
Quarter of Registration: Jul-Aug-Sep
District: Westbury On Severn
County: Gloucestershire
Volume: 6a
Page: 177

1891
Rueben Bannister abt 1860 Gloucestershire, England Head Castleford, Yorkshire
Alice Bannister abt 1860 Allcroft, Gloucestershire, England Wife Castleford, Yorkshire
Alice Bannister abt 1882 Bliney,[BLAINA?] Monmouthshire, Wales Daughter Castleford, Yorkshire
Edith Bannister abt 1886 Cinderford, Gloucestershire, England Daughter Castleford, Yorkshire
Emily Bannister abt 1884 Cinderford, Gloucestershire, England Daughter Castleford, Yorkshire

1901
Reuben Mabson abt 1860 Cinderford, Gloucestershire, England Head Castleford, Yorkshire
Alice R Mabson abt 1861 Aldcroft, Gloucestershire, England Wife Castleford, Yorkshire
Beatrice M Mabson abt 1900 Castleford, Yorkshire, England Daughter Castleford, Yorkshire
Dorothy M Mabson abt 1898 Castleford, Yorkshire, England Daughter Castleford, Yorkshire
Edith Mabson abt 1887 Cinderford, Gloucestershire, England Daughter Castleford, Yorkshire
Lily Mabson abt 1892 Castleford, Yorkshire, England Daughter Castleford, Yorkshire
Reuben Mabson abt 1899 Castleford, Yorkshire, England Son Castleford, Yorkshire

--
Ἀριστοτέλης A Gloster & Hereford Boy in the Forest of Dean ><((((*>

and another twist ...
marriagein Flaxley, living Sutton , Littledean: suspicion of the ages - and only the mark of Henry Watkins
I wonder if this was a rushed marriage without parental blessing?

Year: 1877
Month: Aug
Day: 26
Groom Surname: HIGGINS
Groom Forenames: Thomas William
Groom Age at Marriage: 19
Groom condition: Bachelor
Groom Rank or Profession: Labourer
Groom Residence: Sutton Flaxley
Groom Father's Surname: Higgins
Groom Father's Forenames: Henry
Groom Father's Rank or Profession: Labourer
Bride Surname: WATKINS
Bride Forenames: Alice Rosina
Bride Age at Marriage: 19
Bride Condition: Spinster
Bride Rank or Profession:
Bride Residence: Sutton Flaxley
Bride Father's Surname: Watkins
Bride Father's Forenames: Henry
Bride Father's Rank or Profession: Collier
Licence or Banns: Banns
Date of banns:
Signature or Mark: He signs she marks
Witness 1: Mark of Henry Watkins
Witness 2: Harriet Wellington
Other witnesses:
Officiating Minister: R Hall
Event type: Marriage
Memoranda:
Transcriber's Notes:
Register Reference: P145 IN 1/11
Page No: 144
Parish_Chapel: Flaxley

--
Ἀριστοτέλης A Gloster & Hereford Boy in the Forest of Dean ><((((*>