The Haverhill Firefighting Museum will hold an opening day celebration from 10 a.m. to 4 p.m., Saturday, May 9 at the museum, 75 Kenoza Ave.
Guests may tour the museum, see a working fire truck from the Haverhill Fire Department and pose for a photo with mascot Dottie the Dalmatian. Cost is $10 for families or $2 for children 12 and under and $5 for adults. Free admission for service men and women.