June 21 @ 10:00 AM - 2:00 PM Museum Open Old Mill Museum 366 Mill St., Ortonville, MI, United States Free
June 28 @ 10:00 AM - 2:00 PM Museum Open Old Mill Museum 366 Mill St., Ortonville, MI, United States Free
July 5 @ 10:00 AM - 2:00 PM Museum Open – Farmer’s Market Theme = Miracle Box Packing Old Mill Museum 366 Mill St., Ortonville, MI, United States Free
July 8 @ 6:00 PM - 7:30 PM General Membership Meeting Old Mill Museum 366 Mill St., Ortonville, MI, United States Free
July 12 @ 10:00 AM - 2:00 PM Museum Open Old Mill Museum 366 Mill St., Ortonville, MI, United States Free
July 15 @ 3:30 PM - 5:30 PM Orion Historical Society visit (20 people) Old Mill Museum 366 Mill St., Ortonville, MI, United States Free
July 19 @ 10:00 AM - 2:00 PM Museum Open Old Mill Museum 366 Mill St., Ortonville, MI, United States Free
July 26 @ 10:00 AM - 2:00 PM Museum Open – Farmer’s Market Theme = Northern Lights Drum and Bugle Corp, Kid’s Day Old Mill Museum 366 Mill St., Ortonville, MI, United States Free
July 29 @ 6:00 PM - 7:30 PM Board Meeting Old Mill Museum 366 Mill St., Ortonville, MI, United States Free
August 2 @ 10:00 AM - 2:00 PM Museum Open Old Mill Museum 366 Mill St., Ortonville, MI, United States Free
August 9 @ 10:00 AM - 2:00 PM Museum Open – Farmer’s Market Theme = National Farmer’s Market Week; Corn Roast Old Mill Museum 366 Mill St., Ortonville, MI, United States Free