by the time of the 1921 census

James Richard Roberts was working at Lightmoor colliery
Harry Anthony Roberts was working at Foxes Bridge colliery

I suspect my grandfather may also have worked at Lightmoor 1910/1914, but I doubt I'll ever be sure of that.

1891 St Whites
Thomas Roberts Head Married Male 22 1869 Coal miner Plump Mitcheldean, Gloucestershire, England
Esther Roberts Wife Married Female 20 1871 - Cinderford, Gloucestershire, England

1900 St Whites nr Mount Pleasant Inn and Stockwell Inn
Tom Roberts Head Married Male 31 1870 Coal hewer Cinderford, Gloucestershire, England
Esther Roberts Wife Married Female 28 1873 - Cinderford, Gloucestershire, England
Eliza Roberts Daughter Single Female 10 1891 - Cinderford, Gloucestershire, England
Annie Roberts Daughter Single Female 8 1893 - Cinderford, Gloucestershire, England
Thomas Roberts Son Single Male 1 1900 - Cinderford, Gloucestershire, England

1911 Manchester Villa Belle Vue Rd
Thomas Roberts Head Married Male 41 1870 Collier hewer Mitcheldean
Esther Ann Roberts Wife Married Female 37 1874 Certified midwife Cinderford
Annie Matilda Roberts Daughter Single Female 18 1893 Assist in home duties Cinderford
Bessie Roberts Daughter Single Female 15 1896 Assist in home duties Cinderford
Thomas Roberts Son - Male 11 1900 - Cinderford
James Richard Roberts Son - Male 8 1903 - Cinderford
Harry Anthony Roberts Son - Male 2 1909 - Cinderford
George Worgan Ma - Male 25 1886 Collier hewer Longton Staffordshire
Ethel Worgan Wife - Female 26 1885 House wife Longton Staffordshire
Ethel Worgan Daughter - Female 4 1907 - Longton Staffordshire
Lily Worgan Daughter - Female 2 1909 - Longton Staffordshire

1939 3 Lamb Lane Cinderford
Thomas Roberts 01 Jun 1869 Male Incapacitated Married 35 1
Esther ARoberts 16 Apr 1873 Female Midwifery Incapacitated Married 35 2

Probable Deaths
Year: 1941
Month: Mar
Day: 25
Surname: ROBERTS
Forenames: Thomas
Residence: died at Dilke Hospital
Age_at_death: 71
Officiating_Minister: R C Stebbing Curate
Event: Burial
Cause_of_death:
Memoranda:
Notes:
Register_Reference: P85/1 IN 1/15
Page_No: 251
Parish_Chapel: Cinderford St John

Record_ID: 68289
Entry_Number: 2238
Year: 1943
Month: Dec
Day: 14
Surname: ROBERTS
Forenames: Esther Ann
Residence: 1 Coronation R[oa]d
Age_at_death: 70
Officiating_Minister: F W Wilkes Vicar St Stephens
Event: Burial
Cause_of_death:
Memoranda:
Notes:
Register_Reference: P85/1 IN 1/15
Page_No: 280
Parish_Chapel: Cinderford St John

My reason for asking is that my maternal grandfather George Worgan, his wife and two daughters are listed at the same address on the 1911 census and were presumably renting rooms there.

Both my grandfather and Thomas Roberts were working as coal miners.