这家非盈利机构有一批历史胜地:
鸦片钱: Stevens-Coolidge House & Gardens was the summer home of Helen Stevens Coolidge and her husband, John Gardner Coolidge—a diplomat descended from Thomas Jefferson and a nephew to Isabella Stewart Gardner—from 1914 to 1962.
鸦片钱:Cabot
https://thetrustees.org/place/the-mission-house/