Courtesy Photos The Two Towers, the Old and New Presque Isle Lighthouses, are seen in these photos taken by Sophie Stuart, Thunder Bay National Marine Sanctuary education and outreach specialist. She will give a free presentation on Dec. 4.

ALPENA — Thunder Bay National Marine Sanctuary Education and Outreach Specialist Sophie Stuart will lead a Dec. 4 presentation called The Two Towers: An Archaeological Biography of the Garrity Family.

The free presentation will begin at 6 p.m. on Wednesday, Dec. 4 at the Great Lakes Maritime Heritage Center. Doors open at 5:30 p.m.

Local, historical, and material records combine in an exploration of the lives of lighthouse keepers in the Great Lakes.

The Garrity family had a long and illustrious career within the lighthouse service throughout the Great Lakes, but the majority of their service was spent at the Old and New Presque Isle Lighthouses and the Presque Isle Range Light.

Join Stuart as she discusses her thesis research on the Garrity family and their time at the Presque Isle Lighthouses.

At this lecture you will learn about the daily life of a lighthouse keeper and some fascinating local maritime history as we examine artifacts recovered from the New Presque Isle Lighthouse and connect them to the families who lived there.

This program will be an evening of immersive history, local connection, and appreciation for this incredible family and their service to the safety of ships on the Great Lakes throughout the 19th and 20th centuries.