Senior Citizen Celebrities Older Americans who rock In 1963, President John F. Kennedy designated May as Senior Citizens Month, and in 1980, President Jimmy Carter's proclamation changed the name to Older Americans Month, a time to celebrate those 65 and older through ceremonies, events and public recognition. Here are a few older Americans who should be celebrated. Betty White Her comeback: Betty White, 89, gained celebrity status all over again when she appeared in "The Proposal" .Then came the Super Bowl ad.. Her career: White has been acting for six decades, but we bet you don't know the name of her first sitcom in 1953. Other shows in which she starred: * "The Mary Tyler Moore Show" in the '70s * "The Golden Girls" in the '80s * Now she's on "Hot in Cleveland".Her co-stars include: * Valerie Bertinelli best known for her role on the '70s and '80s sitcom "One Day at a Time" and for being the spokespers...