I am her stupid sister

Original title: Concealed geography 38

Puzzle

I am her stupid sister.

Hints

Hint 1
City

Hint 2
in the USA

Hint 3
in Massachusetts

Loyd, Sam [1914]. in Loyd, Sam, Jr.: Sam Loyd's Cyclopedia of 5000 Puzzles Tricks and Conundrums (in English). New York: Lamb Publishing company, page 10.