The East Contra Costa Historical Society Museum’s annual barbecue is set for Sunday, Sept. 11 from 2 to 6 p.m. at the Byer-Nail House Museum, 3890 Sellers Ave. (between Sunset and Chestnut streets) in Brentwood. Opening ceremonies begin at 2 p.m.; a barbecue tri-tip dinner is served at 4 p.m.

The event begins with a special commemoration of the Twin Towers attack in 2001, followed by docent-led museum tours, a photo contest, horseshoeing and spinning wheel, and special displays and exhibits. Youngsters can pan for gold, milk a wooden cow and have their picture taken behind the wheel of a vintage fire engine. Music will be provided by The Brentwood Community Band, Rod Linn and the Buzzards, and Chuck Hunter’s Barbershop Quartet. Entries and winners of a professional and amateur photo contest will be showcased.

Dinner, served at 4 p.m., features barbecue tri-tip provided by the Brentwood Rotary Club, corn on the cob supplied by Ghiggeri and Stonebarger (G&S Farms), salad with tomatoes and onions provided by Smith Family Farms, beans cooked by Dave Perry, rolls and dessert.

The barbecue is the major fundraiser for the upkeep and availability of the museum. The Society is a completely volunteer organization; it receives no public funding. Tickets are $20 for adults and $10 for children 6-12. Admission is free for children under 6. Tickets may be purchased by calling Shirley McCall at 925-634-4049.