JackyB
I've just worked out that my grandmother, who was born in 1888, must have had my mother when she was 41, in 1919. Well, 40 actually, because her birthday was in October and my mother's was in November. But it must have been a real surprise when my aunt, her fifth child, was born in January 1921. (That aunt just died last October, aged 104).
Children in their 40s was common at that time, girls matured later and families of 10 even 14 was not unusual. In my family history around 1800 12 children were born, my own branch descended from the 7th child Septimus, I often wonder who chose that name.