Does this look like him, you will need to get the marriage cert to see if his father's name is Thomas William Franks:

NAME: William Stanley Franks
BIRTH: 05 Oct 1890 (5 Oct 1890) - Kent, England
DEATH: 1963 - Chelmsford, Essex, England
MARRIAGE: Q2 1928 - Bromley, Kent, England
PARENTS: Thomas William Franks, Annie Lousia Burgum
SPOUSE: Eveline Freeman

Birth
Name: William Stanley Franks
Registration Year: 1890
Registration Quarter: Oct-Nov-Dec
Registration district: Faversham
Inferred County: Kent
Volume: 2a

Baptism
Name: William Stanley Franks
Gender: Male
Baptism Date: 9 Nov 1890
Baptism Place: Throwley, Kent, England
Father: Thomas Franks
Mother: Annie
FHL Film Number: 1835793
Reference ID: it 2
Page: 769

England & Wales marriages 1837-2008
Name: WILLIAM S FRANKS
Marriage: 2nd quarter 1929
Spouse's name: EVA FREEMAN
District BROMLEY
County Kent
Country England
Volume 2A
Page 1377


Death:
Name: William S Franks
Birth Date: abt 1890
Date of Registration: Dec 1963
Age at Death: 73
Registration district: Chelmsford
Inferred County: Essex
Volume: 4a
Page: 486

Possible children for Eva and William Stanley Franks

Cynthia H Franks
Mother's Maiden Surname: Freeman
Date of Registration: Apr-May-Jun 1929
Registration district: Bromley
Inferred County: Surrey, Kent
Volume Number: 2a
Page Number: 1031

Name: Martin D Franks
Mother's Maiden Surname: Freeman
Date of Registration: Jan-Feb-Mar 1931
Registration district: Faversham
Inferred County: Surrey
Volume Number: 2a
Page Number: 1615

Name: Gregory P Franks
Mother's Maiden Surname: Freeman
Date of Registration: Oct-Nov-Dec 1935
Registration district: Chelmsford
Inferred County: Essex
Volume Number: 4a
Page Number: 944