TUESDAY Donald Davidson: 6:30 p.m. Irvington Branch Library, 5625 E. Washington St. All ages can be part of an hourlong question-and-answer session with Davidson, Indianapolis Motor Speedway historian and host of radio program "The Talk of Gasoline Alley." He is co-author of the "Autocourse Official History of the Indianapolis 500" and has contributed to countless other hardcover books on racing.