I work in a travel agency and book people of all ages.
It always cracks me up though I make bookings for old people whose names you can tell were from back in the day. Names like Ethel, Gretchen, Dorothy Mae....actually anything with Mae like Bertha Mae, Otis Mae, and Earnistine Mae. Some of these people really have unfortunate names

What are some names that reek of old to you and that you would never name your child?

For me it's names that sound like grandma names. Names like Emma, Beatrice, Gurtude, and Ophilia
Guys names for some reason don't sound grandfatherish to me, but I'm sure there are odd names for guys too that sound old.