Those are the names of some of the characters Sasha Alexander plays/has played in TV shows. I recognized Caitlin Todd from NCIS but not Maura Isles as I don't watch Rizzoli & Isles. But it doesn't surprise me the correlation wasn't there because Kate's hair was dark brown and Isles is much much lighter.
Southern Colorado Curly
Mix of 2s med-low porosity, med-fine texture, lots of hair