What do you think Nellie did on the trip so that people knew where she was and how she was doing?

She sent dispatches and articles to her newspaper to be published.
She sent letters to the president of the United States.
She gave interviews to television reporters.
She made telephone calls to her parents.

She sent dispatches and articles to her newspaper to be published.

Nellie's actions on the trip included sending dispatches and articles to her newspaper to be published, sending letters to the president of the United States, giving interviews to television reporters, and making telephone calls to her parents. These actions allowed people to stay informed about her whereabouts and how she was doing during the trip.