Opposite Legacies

Poul Anderson's Nicholas van Rijn, David Falkayn and Dominic Flandry do not all marry but do all have children. Future history implies future generations.

Of Dornford Yates' leading characters:

Jonathan Mansel neither marries nor has children;
Berry Pleydell marries but does not have children;
Boy Pleydell marries twice but does not have children;
Richard Chandos marries twice but does not have children.

Does this seem improbable? I suspect that Yates, writing nostalgically about the end of an era, did not want to show a later generation struggling to make ends meet while having to survive without being able to afford domestic servants after the sale of their ancestral home.

Whatever happens, Anderson's characters look to the future, not to the past.