Well, while we're on the name thing, I have to throw out this story. My girls graduated from HS in 2005 & 2007 and at our school the class above the oldest had literally 50 girls named Katie in it. There are plenty of Katies spread out throughout the grades, but that particular class was just overrun with them. Everytime you thought you'd named them all, you'd think of five more. Anyway, our school is also majority minority made up of African Americans, Hispanics, lots of mixed and whites. One day one of my daughter's friends (named Katie) was walking down the hall and somebody behind her said, "Hey Katie" so she turned around. There were two AA guys standing there laughing and one said to the other, "See, I told you every white girl in this school is named Katie!"
And back to the Marys....two of my favorites are Mary Melissa (she's 18) and Mary Cobb (she's 5). MC gets called "Cobbie" which is kind of cute. When you're 5 anyway.