Even more conspicuous, there's the family from the caster role quest, with the parents referring to each other as their husband/wife. (Though it's not entirely clear whether they're traditional Hhetsarro or not, as they don't dress like the Mehwahhetsoan group and we don't learn anything about their home beyond that they revere their particular totem.)
Regarding male Keepers, Mikko has already covered most of the lore we have on that, but I'll add that the clan as a whole seems limited to the Twelveswood so there just isn't much opportunity to encounter them. I assume (can't remember if we have a source) that they may tend to be working in the forest as hunters and such.
I made a list of existing characters when I was writing my
expanded naming guide for Keepers and the male characters we know about include several squadron members, a Gridanian Hearer, a captain of the Gods' Quiver, a Sharlayan researcher, an adventurer and that guy from the beast tribe capstone quests.