and type in births of HAWKINS and Mother's Maiden Name: AVERY - you'll find

December Qtr 1920 - Hammersmith
Robert A HAWKINS

and

March Qtr 1921 Newton Abbott
Queenie L HAWKINS

and then again..... if you go onto Genesreunited, you'll find these names listed, and names to contact..... keep you busy

I think it's starts about the Middle of 1911 when the mother's maiden name is listed on the birth records (FreeBDM) - before that, it's just the birth surname.

Robert S. Hawkins
Age: 6
Estimated Birth Year: abt 1875
Relation: Son
Father's Name: James
Mother's Name: Ann
Gender: Male
Where born: Monmouth, Wales

Civil Parish: St Ives
County/Island: Cornwall
Country: England

Street address: Tregenna Terrace
Education:

Employment status: View Image
Occupation: Scholar

Registration district: Penzance
Sub registration district: St Ives
ED, institution, or vessel: 4
Neighbors: View others on page
Household Members: Name Age
James Hawkins 45
Ann Hawkins 38
Edith M. Hawkins 16
Winifred A. Hawkins 15
Elizabeth M. Hawkins 13
Gertrude E. Hawkins 11
Emily F. Hawkins 10
James A. Hawkins 9
George L. Hawkins 8
Robert S. Hawkins 6
Kate E. Hawkins 4
Florence J. Hawkins 1

His father is a Primitive Methodist preacher born Viney Hill Glos.

If you would like a scan of census page, let me know. He is the only one born Monmouth in the family.
Regards
wyerunner

its shows he comes from Wales and is the Head of teh household. Looking at teh image I would say he is renting a room in a large house.

1901 Robert S Howkins abt 1875 Inmmouth, Monmouthshire, Wales Head ( of household) Islington, London Professional Singer

1891 ( mis transcribed )
Robert Sims abt 1876 Monmouth, Wales Son Sheffield, Yorkshire

This may be a marriage

Name: Ethel V Avery
Name: Robert S Hawkins
Year of Registration: 1914
Quarter of Registration: Apr-May-Jun
Spouse's Surname: Avery
District: Paddington
County: Greater London, London, Middlesex
Volume: 1a
Page: 43