The McKinney Heritage Alliance debuted its new trolley tour “Bad Boys and Desperados of Old McKinney” on Saturday, Aug. 11.

During the tour, trolley guides explain the history of McKinney and the reasons it used to be called the “diamond breastpin of Texas.”

While viewing the architecture of the many historic homes and buildings, tour attendees also get to hear the stories of famous outlaws, including Frank and Jesse James, Cole Younger, Sam Bass, Belle Starr, Bonnie and Clyde and others, and the trolley travels to the sites where they lived, fought and died.

Trolley tours are held on the second Saturday of every month, starting at 10 a.m. Boarding begins at 9:30 a.m. at Chestnut Square Historic Village, located at 315 S. Chestnut St., McKinney.

The next tour date is Sept. 8, and two tours will take place starting at 10 a.m. and 11:30 a.m.

Trolley tour tickets are $10 for adults, $7 for children younger than 12 years, seniors and military, and free for McKinney Heritage Museum Alliance members.