Sharon Houser, left, Ray O’Neill and Susan George tour the Barnhisel Home during a recent open house weekend. O’Neill served as a costumed guide. Open houses are 1 to 5 p.m. today, Sunday, and Dec. 8 and 9. The theme is “Christmas Trees Through the Ages” with decorated trees using ornaments from late 1800s to 1960s. Among them are a feather tree, aluminum tree, nature tree, Coka Cola tree, Victorian trees and an old economy tree with 3-D paper ornaments. Refreshments and music will be provided as well as guides in period dress. Calendars for 2013 and note cards will be available for purchase. Donations are welcome. For information visit www.girardhistoricalsociety.org.