<<A typical Levi wife had 37 sons?! (And presumably an equal number of daughters?!)>> Actually more since every levi whose genealogy is given in the Torah as a lot less. Levi has 3 sons, Amram 2 sons and a daughter, Moshe 2 sons, Aharon 4 sons (and some daughters) and similarly for the others listed in the Torah. -- Eli Turkel