The eldest daughter of Nelson Rockefeller, she founded a nonprofit to support Indigenous culture and helped fill two Smithsonian institutions with artifacts.

Catholic Charities provides help to the poor, homeless, hungry and the most vulnerable immigrants.

The U.S. provides nearly half of the aid for global health, including childhood vaccination, H.I.V. treatment and disease surveillance.

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Women with obstetric fistulas suffer year after year, even as a $619 surgery can restore them.

Readers respond to an essay by Daniela J. Lamas. Also: Andy Griffith’s Mayberry today; Donald Trump’s loyalty test; never an exile; choosing charities.

Habitat for Humanity helps older people who can’t afford to make their homes safe and workable as they age.

Sir Percival David’s collection, amassed in the early 1900s, includes prized vases and wine cups. “You simply couldn’t build up a collection like this today,” one expert said.