Does anyone know about Halfling creation?

I have been playing tabletop RPGs for a number of years, specifically HackMaster 4E.

At the moment, I am doing some extensive worldbuilding, and even to extent of developing my own creationist theories for the world. I have ideas for how the gods created the Dwarves, Elves, Gnomes, and even Humans. I have not, however, got any clue about how the Halfling creationist theory would work.

I have been researching for a number of weeks, and have turned up empty.

Does anyone have any ideas, or know of where I need to look to continue my research?