Regarding the age at becoming a father, my g/g/grandfather remarried in his very late 50's and went on to have a further 3 children, to add to the 7 he already had 2 of which were older than new wife!
His mother was also very economical with the truth about her age. Until her husband died she was always about the same age as him, but after he died she revealed that she was 11 years his senior.