1921 Census of England and Wales, General Report with Appendices, Table 73 : " Dependency by Geographical Regions".

N.B. For constitution of geographical areas see TABLE VII.
The average number of children under 16 per family is based on all families, including childless families.

Region. Married Men. Widowers. Widows.
Average
age of
married
men		 Average
No. of
children		 Average
age of
children		 Average
age of
widowers		 Average
No. of
children		 Average
age of
children		 Average
age of
Widows		 Average
No. of
children		 Average
age of
children
England and
  Wales		 44.8 1.27 7.9 62.4 0.32 10.4 60.5 0.37 9.9
                   
Wales
  (including
  Monmouth)		 44.2 1.48 7.7 61.1 0.40 10.3 60.9 0.41 10.1
Central
  Counties		 44.7 1.30 7.9 62.9 0.32 10.4 61.1 0.38 9.9
Northern
  Counties		 44.0 1.30 7.8 60.9 0.35 10.4 59.3 0.41 10.0
London and
  surrounding
  Counties		 45.0 1.24 7.9 62.6 0.30 10.4 60.2 0.35 10.0
Southern
  Counties		 46.6 1.11 8.0 65.2 0.24 10.4 62.3 0.30 9.9
Eastern
  Counties		 46.6 1.22 7.9 65.4 0.26 10.2 63.1 0.34 9.6