The historic Maasdam Barns at the Evergreen Ridge Stock Farm are a significant illustration of an early 20th-century draft-horse breeding business.

The Good Roads Guide to Iowa - 1912 stated:
"Jefferson County is one of the great original horse markets of the country and several thousand head of horses have been sold here annually. Several firms of horse importers make their headquarters here and always have stock for sale."

From 1910 until 1938 award-winning Percheron draft horses were raised and sold by J. G. Maasdam.

The two 1910 barns were apparently designed by the Louden barn design division. They used modern barn construction methods, such as poured concrete walls, and featured Louden barn products.

Apparently the 1906 show barn was built by then-owner Ellsworth Turney. The Joel Turney and Company built well-known farm wagons, becoming a leading Fairfield employer.
(The Joel Turney & Company page is building # 44).