Ernest did not appear to have gone to America with the family
but in 1929 an Ernest James ( Ruardean) went to America with his wife Muriel ( b. Coleford.) Maybe he is the Ernest of the family.

Name: Muriel Louise James
Birth Date: 12 Mar 1901
Date of Registration: Nov 1987
Age at Death: 86
Registration district: Gloucester
Inferred County: Gloucestershire
Volume: 22
Page: 1912

Name: Ernest C James & Muriel L Morgan
Date of Registration: Oct-Nov-Dec 1925
Registration district: Ross
Inferred County: Herefordshire
Volume Number: 6a
Page Number: 980

Year: 1901
Month: May
Day: 19
Parents_Surname: MORGAN
Child_Forenames: Muriel Louisa
Fathers_Forenames: Robert
Mothers_Forenames: Louisa
Mothers_Surname:
Residence: 6 Staunton R[oa]d Coleford
Occupation: Stonemason
Officiating_Minister: W Townsend
Event: Baptism
Memoranda:
Notes:
Register_Reference: P93 IN 1/7
Page_Number: 98
Parish_Chapel: Coleford

I suspect she is married to

Year: 1897
Month: Mar
Day: 17
Parents_Surname: JAMES
Child_Forenames: Ernest Chesney
Fathers_Forenames: Ernest John Henry Thomas
Mothers_Forenames: Horience Elizabeth
Mothers_Surname:
Residence: Ruardean
Occupation: Collier
Officiating_Minister: E Parnell
Event: Baptism
Memoranda:
Notes:
Register_Reference: P275 IN 1/8
Page_Number: 71
Parish_Chapel: Ruardean

Name: Ernest Chesney James
Birth Date: 11 Feb 1896
Date of Registration: Oct-Nov-Dec 1971
Age at Death: 75
Registration district: Gloucester City
Inferred County: Gloucestershire
Volume: 7b
Page: 1106