hi anonymous, it would appear that he was actually born in the 2nd quarter of 1891, and there are several descendants likely to still be alive.
Below are his birth, marriage and descendant details
Name: AMBROSE, Clyde Hubert
Registration district: Luton
County: Bedfordshire
Year of registration: 1891
Quarter of registration: Apr-May-Jun
Volume no: 3B
Page no: 467
...and got married in Fulham in 1922...
Groom: AMBROSE, Clyde H
Bride: QUILTER, Ada V
Registration district: Fulham
County: London
Year of registration: 1922
Quarter of registration: Apr-May-Jun
Spouse's last name: Ambrose
Volume no: 1A
Page no: 837
..and he and Ada had one child, born in 1924...
Name: AMBROSE, Percy G C
Registration district: Fulham
County: London
Year of registration: 1924
Quarter of registration: Jul-Aug-Sep
Mother's maiden name: Quilter
Volume no: 1A
Page no: 480
...Percy appears to have got married himself in Essex in 1947...
Groom: AMBROSE, Percy G C
Bride: CONDLIFF, Vera J
Registration district: Colchester
County: Essex
Year of registration: 1947
Quarter of registration: Jan-Feb-Mar
Volume no: 4A
Page no: 802
...Percy & Vera appear to have had a number of children...
Name: AMBROSE, Clyde A
Registration district: Colchester
County: Essex
Year of registration: 1948
Quarter of registration: Jan-Feb-Mar
Mother's maiden name: Condliff
Volume no: 4A
Page no: 731
Name: AMBROSE, Russell K
Registration district: Colchester
County: Essex
Year of registration: 1949
Quarter of registration: Oct-Nov-Dec
Mother's maiden name: Condliff
Volume no: 4A
Page no: 605
Name: AMBROSE, Nicholas L
Registration district: Colchester
County: Essex
Year of registration: 1958
Quarter of registration: Apr-May-Jun
Mother's maiden name: Condliff
Volume no: 4A
Page no: 891
Name: AMBROSE, Caroline J
Registration district: Colchester
County: Essex
Year of registration: 1961
Quarter of registration: Jan-Feb-Mar
Mother's maiden name: Condliff
Volume no: 4A
Page no: 975
