Tickets are now on sale for Union Historical Society’s annual Come Spring Bus Tours, offered only during Founders Day weekend each year.

The narrated two-hour bus tours depart from the Old Town House on Town House Road at Friday, July 18, at 5:30 p.m., on a Luce Transportation school bus, and Saturday, July 19, at 9:30 a.m., on an air-conditioned coach from Custom Coach and Limousine. Tickets are $12 for the Friday tour and $25 for the Saturday tour.

Included in the tour are dismount stops at five historic sites, of which four are located on private property and are not open to the public at other times. The route follows the Georges River Scenic Byway, identifying sites where Union’s early settlers built cabins and lived. The names of the settlers are documented in town records and their lives and stories are recounted by Ben Ames Williams in his 1940 historical novel "Come Spring," reprinted by the Historical Society. After visiting settlers’ gravesites in the Common Cemetery on Ayer Hill, the tour will stop at the cellar hole of the cabin where Philip Robbins’ large family spent a crowded winter in 1776, and then at the homestead of Robbins’ oldest son David. After a circuit over the blueberry barrens of Clarry Hill, tour participants visit the site of the Royal Mess, the bachelor home of Jason Ware, Joel Adams and Matthias Hawes, overlooking the hillside where Adams and his wife Mima Robbins built their home. Finally the tour visits the Alden Store on Common Road, built close to his home by Ebenezer Alden in 1797 and run by the Alden family for 100 years.

Come Spring Bus Tour tickets may be purchased in advance at the Robbins House, headquarters of Union Historical Society, on Wednesday and Saturday mornings, or by calling 785-5444 and leaving a message.