Age: ?
Second Relief

       According to H. H. Bancroft, Dunn was a native of Maine who arrived in California on a whaler in 1846 and went to the Sonoma area, where he was recruited for the Second Relief. As a result of his participation in the Donner rescue, Dunn lost some toes to frostbite. In later years He went to southern California where he got into trouble: he joined a gang of desperados and was tried twice for murder. In 1857 Dunn went to Arizona, where he died several years later.

Sources:

New Light on the Donner Party, Kristin Johnson

Ordeal By Hunger, George Stewart