"I want to do environmental policy somewhere in the American west," said MacMillan, who is from Eagle, Idaho. She said she plans to work on rewriting the country's water laws.

"If you're at all able to participate in the Rhodes Scholarship, do it. It's 100 percent worthwhile," MacMillan said.

Raiskin, a social anthropology concentrator, said she plans to obtain a masters or doctoral degree in Eastern European studies, concentrating on the politics of transition from socialism to capitalism affecting Eastern European studies.

"It's a bit of merit, it's a bit of luck," she said. "I feel very fortunate."

Raiskin was the head of the Perspective last year and does volunteer work in her spare time.

Wozniak, of Anchorage, Alaska but recently transplanted to Silverton, Ore., could not be reached for comment.

Julia Rubin, a tutor in Quincy House and a friend of Wozniak's, said that she was thrilled to hear the news.

"He's a very bright guy, a free spirit who is his own person. Which is great because the Rhodes isn't know for [choosing unconventional people]," Rubin said.

Wozniak is a history and literature concentrator who said she plans to study philosophy in European literature at Oxford.

He has been active in community service through his work in a homeless shelter. He has also taught anger management and conflict resolution to sixth graders in Boston.

The winners of the Rhodes Scholarship overcame many hurdles in competition, according to Bohlmann.

In addition to excellent academic ability, leadership, community service and athletics or vigor, the selection committee looks for a good plan of study at Oxford, and a compelling reason why a candidate would be a good investment, Bohlmann said.

The selection process starts at the university level, where Harvard students submit their Rhodes application to a selection/endorsement committee headed by Dean of College Harry R. Lewis'68.

This year's 32 scholars were chosen from a group of 990 applicants from 314 colleges and universities in the United States.

The results for Harvard students who are competing for the Canadian Rhodes Scholarships have not been announced yet. The winners will be announced sometime next week, Bohlmann said.

--The Associated Press contributed to the reporting of this story.