The Landing of Elendil

[Mithalwen]

And even less likely to have carried out the rape and pillage that usually accompanies conflict .......... to ensure repopulation with the seed of the conquerers .....

The Numenoreans, I believe did not remarry because they modelled themselves on the Eldar who did not remarry (with the exception of Finwe) because death was not a permanent separation between the spouses since both were bound to the world as long as it lasted and bodily death was merely a "blip". I get the idea remarriage was allowed in "lesser" communities - in the Appendices it says that Theoden "did not wed again" after his wife died in childbirth which surely implies that it would have been an option.

Also the Numenoreans lived a long time and the women remained capable of bearing children a long time so they could have had quite sizeable families eeeeek.

Amazonian? Valkyrie maybe - Hojotoho!