When the Winchester Mystery House celebrated its 100th anniversary two years ago, Robin Chapman was one of several historians asked to speak to mark the centennial. Intrigued by what Sarah Winchester had done with the acreage surrounding the mansion, Chapman embarked on a research project. She will share her findings in A Winchester Mystery in the Valley of Heart's Delight, on Wednesday, Oct. 15, 5:30-7 p.m., at the Los Altos History Museum
Stanford Blood Center is partnering with the Golden State Warriors to give donors a chance to win four tickets to the Warriors vs. Dallas Mavericks game on Christmas Day, Dec. 25, at 2 p.m. at Chase Center in San Francisco. All donors who give blood at a Stanford Blood Center, including the South Bay Donor Center in Campbell, during the month of October will be automatically entered into the drawing.