The Treadway's

Congratulations to everyone!  I agree with Bobbie - Mandolin does not seem to be male or female.  However, Mandol is a prescription drug.  I looked up Brandolin (I like that, too) and I found it as a last name in the U. S. and Canada.

Dolin Name Meaning - Jewish (eastern Ashkenazic):  habitational name from any of several places in Ukraine and Belarus called Dolina, from Slavic dolina ‘valley’.  French:  metonymic occupational name for a carpenter, from a derivative of doler ‘to shave or plane’.  Probably a variant spelling of Dolen.