Start Your Arenac County Research at ACHS
Arenac County Historical Society strives to preserve Arenac County’s history for the public and researchers. The Arenac County Historical Museum houses exhibits, artifacts, documents, and memorabilia dating from Arenac’s first settlements to the current time. Its preservation project, Ye Olde Courthouse Masonic Hall Museum, is home to memorabilia and sources for the county’s first courthouse, and the former Masonic Lodge, Northeast Michigan Baseball League, “Settlement of Arenac,” and Arenac Eastern School District. Open summer hours and visits by appointment available.
Events
Drive Arenac 250 Tour pamphlet
2027 events will post when details are confirmed.
News & Notes
- 9/22/2026: Added indexes to History of Omer Vol 4 (various yrs 1871-2013) photos & news clippings, and to Deep River Twp T19N-R4E 1938 WPA Land Register. Updated index to Omer Centennial, 1872-1972 with years and item descriptions
- 8/31/2026: Added index to Arenac County Obituaries 1950s-70s plus Misc Years (spanning 1899-1949)
- 8/28/2026: Added index to Arenac & Pine River Settlements, 1867-2016. Articles, photos, postcards, documents; index to Onionville Farm Community 1906-2016. Articles, photos, misc.; muck lands; Bailiff family genealogy.
Hours
– OPEN the 2nd & 4th Saturday from 1:00pm to 4:00pm during June, July & August. During the rest of the year, call 989-876-6399 for an appointment. For more information call 989-876-6399. Please leave your name, phone number and a brief message.
– ACHS MEETINGS 3rd Thursdays, 7:00PM in Au Gres at Museum (Arp-Oct) or Jimco (Nov-Mar). Both locations are in Au Gres.
– Ye Old Courthouse MEETINGS 2nd Fridays, 9:30AM at YOC in Omer.
– GENEALOGY & HISTORY HELP at Ye Olde Courthouse in Omer. Call Phyllis at 810-938-6991 or Brenda at 989-233-1428.
Contact ACHS
Arenac County Historical Society
304 East Michigan Avenue
PO Box 272
Au Gres, Michigan 48703-0272
(989) 876-6399
Ye Olde Courthouse
120 Center Street
PO Box 84
Omer, MI 48749-0084
810-938-6991 or 989-653-2762
- Museum & archives questions: achs@centurytel.net
- Website problems & questions: webtechachs@gmail.com