SUMMIT TWP — A replenishment blood drive will be held from 1 to 7 p.m. today in the cafeteria of St. Mary Assumption School, 811 Herman Road.

The drive will benefit Kristofer Olesnevich Robinson, an infant with cancer of the cartilage.

Visit www.centralbloodbank.org and enter Kristofer's sponsor code ZRTN0562 or call Mary Ellen Jeffrey at 724-285-3285.

The annual Buffalo Creek half marathon will be held at 9 a.m. Saturday along the Butler Freeport Community Trail.Registration is from 7 to 8:30 a.m. at the Lernerville Speedway parking lot, 313 N. Pike Road, Sarver.A shuttle will transport participants to the starting area at the Winfield Township Fire Hall, 194 Brose Road, Cabot.For information, visit www.buffalocreekhalfmarathon.com or contact Anne Gallagher at racedirector@buffalocreekhalfmarathon.com or 724-295-5530.

CRANBERRY TWP — The Heroes for Autism benefit fundraiser will be held from 6 to 9 p.m. Saturday in the Haine Middle School cafeteria, 1516 Haine School Road.The event will support family programs at Parents in Toto Autism Resource Center in Zelienople.Come dressed as your favorite hero. The event includes live music, games, prizes and more. Registration is encouraged at www.parentsintoto.com. Contact Mary at 724-473-0990 or mary@parentsintoto.com for information.

BUTLER TWP — "Preparing for College" will be presented by guidance counselors at 7 p.m. Oct. 22 in the Butler High School auditorium.The program is for ninth and 10th grade college-bound students and their parents.

VALENCIA — Valencia United Methodist Church, 66 Almira St., will hold an auction of all-new items at 6:30 p.m. Oct. 23 in the fellowship hall. Up for sale are seasonal items, housewares, outdoor supplies and food items. Doors open at 5:30 p.m.For information, call 724-625-2330 or visit www.valenciaumc.org.

SLIPPERY ROCK — The Pennsylvania Brain Injury Association and the Moss Traumatic Brain Injury Model System will hold a symposium for brain injury survivors, family members and caregivers Oct. 31 at Slippery Rock University.The symposium will cover medical, psychological, employment and educational issues as well as funding and resources and legal issues. Experts will speak briefly about their areas of expertise and respond to questions from the group. To register, call 877-666-1977.

To participate in an upcoming Focus story on theme Halloween parties, call the Focus department at 724-282-8000, Ext. 252.