Career
Born in Denmark, New York, Hazen moved to Wisconsin Territory in 1844. He eventually settled on a farm in Ladoga, Wisconsin, where he started the first cheese making factory in Wisconsin. Hazen also help founded the Fond du Lac Dairyman Association and the Wisconsin Dairyman Association.
Hazen served in the Wisconsin State Assembly in 1885–1886.
In 1895, he moved to Ripon, Wisconsin, where he served as mayor. He died in Ripon.