Hello again Rootschatters.
Thank you, Treetotal and jim1, for your quick responses.
Henry Brown married Julia in late 1888. Their children, as far as I can find, were:-
Ethel Agnes, b.1889
George Harold, b. 1891
(these first two appear in the 1891 census, then seem to disappear completely, although I could find no reference to a death for either).
Raymond Sidney, b. 1892
Percy Charles, b. 1894
Marjorie Helen, b. 1897
Hugh Lambert, b. 1903
Kathleen Rena, b. 1905
Constance Beryl, b. 1907
Arthur H., b. 1913
None appear in the local church registers, but the chapel was very strong in this area.
Working on the suggested ages, with the young girl appearing to be the oldest child, it seems probable to me that the children shown are Ethel Agnes, George Harold or Raymond Sidney, Percy Charles and Marjorie Helen. By my calculation, that would then place the photograph at 1897 to 1899. Please feel happy to correct me if you believe me to be in error.
Again, my thanks to you all for your help, for now and hopefully in the future (I have more photos that I shall looking to date at some point).
All my best regards,
from Scobie