Q: For the American Heart Association, American Cancer Society and the American Diabetes Association, what percent of the income goes to research and patients?

—Charles Blackburn, Lawrenceville

A: The American Heart Association spent about 78 percent of its 2012 fiscal year revenue on program expenses, or "programs and services it exists to deliver," according to CharityNavigitor.org, a website that tracks and rates charitable organizations. That equals to $465 million on program expenses, compared to $49.7 million (8.3 percent) on administrative expenses and $81 million (13.6 percent) on fundraising, according to the website. The American Cancer Society spent $672.8 million (71.2 percent) on program expenses, $65 million (6.8 percent) on administrative expenses and $205.8 million (21.8 percent) on fundraising. The American Diabetes Association spent $131.2 million (66.5 percent) on program expenses, $8.3 million (4.2 percent) on administrative expenses and $57.7 million (29.2 percent) on fundraising. All three have been accredited by the Better Business Bureau (www.bbb.org/us/charity).

Q: What became of Lee Harvey Oswald’s wife and two daughters after the assassination of President John F. Kennedy?

—Kathy McDonough, Peachtree Corners

A: Marina Oswald Porter, Lee Harvey Oswald's widow, is a 72-year-old grandmother who has lived in the Dallas suburb of Rockwall since the mid-1970s. She was born Marina Prusakova and married Oswald on April 30, 1961, after he had defected to the Soviet Union. They had two daughters — June is 51 and Rachel is 50 – who also live in suburban Dallas, according to published reports. Marina married Kenneth Porter in 1965 and they had one son.

Andy Johnston wrote this column. Do you have a question about the news? We’ll try to get the answer. Call 404-222-2002 or email q&a@ajc.com (include name, phone and city).