Living in MiddleEarth

[the phantom]

Can anyone provide us with a quote of the Seven Fathers being not only male, or being set with females by Iluvatar. In the Silmarillion I can find nothing but this:

I'm not at home with my books, but I did a search of other threads and found where someone used the quote I was remembering (from HoME XI The War of the Jewels)-

[Ilúvatar] commanded Aulë to lay the fathers of the Dwarves severally in deep places, each with his mate, save Durin the eldest who had none

So does this mean that three of the "fathers" were mothers, or what? My memory on this section is very sketchy. I wish I could read the rest of the text but it'll have to wait.