BUTLER TWP — Rainbow Animal Refuge will hold an adopt-a-thon of cats, kittens and puppies from 11 a.m. to 4 p.m. April 17 and 18 at Petco, 760 Butler Crossings. All animals have been spayed or neutered and vaccinated.

ZELIENOPLE — The Women's Business Network, Zelienople/Harmony Chapter, will host a spring open house at 8:30 a.m. April 23 at the Kaufman House, 105 S. Main St.A breakfast buffet will be served and a free membership will be awarded to one eligible woman attendee. Registration is required by April 21. Call Nicole Gordon at 724-452-8900.

CLEARFIELD TWP — A rabies clinic will be held from 2 to 4 p.m. May 2 at the Happy Hunters Club, Clearfield Road, Fenelton.Dogs must be on a leash and cats must be in carriers. Animals must be at least 13 weeks old. 1 year shots only unless a prior rabies certificate is presented.

LYNDORA — The Tanglewood Center, 10 Austin Ave., will host a rummage sale, 50-50 raffle, baked goods and candy sale, Chinese Auction and more from 1 to 5 p.m. April 25.A ham dinner will be held from 11 a.m. to 5 p.m. For information, call 724-287-0021.

The Butler County Historical Society will sponsor a guided tour of Antietam National Battlefield in Sharpsburg, Md., on June 12 and 13. The weekend trip includes a stop at the C&O Canal Lock 38 and an overnight stay in Shepherdstown, W.Va.Call the Butler County Historical Society at 724-283-8116 to place your reservation or visit www.butlerhistory.com for information or a reservation form.

SAXONBURG — The Saxonburg Library, 240 W. Main St., will host a kick-off party at 7 p.m. April 29 to share information on the American Cancer Society's Relay for Life 24-hour community and volunteer-based fundraiser.The group's 24-hour event will be July 24 and 25. Cancer never stops, so participants will take turns walking around a track to symbolizing the life of a cancer patient. There will also be entertainment and activities.