George Childs Dunmow Essex

Looking for information on George Henry Childs born Dunmow Essex between 1856 and 1864 according to census information. Wed Sarah Kemball Colchester Essex 1882 and went on to have 3 children. I have not been able to locate George's exact birth details. Marriage certificate lists him "of age" and census dates differ. Also no "George Henry" Childs born in the area for the period only "george" Childs. Can anyone help, even if you have details of any of the George Childs born in the period so that I can cross them off the list. Thanks in advance for any assistance
best regards. Colin