McMillan is a town in Marathon County, Wisconsin, United States.

[4] The six mile square that would become McMillan was first surveyed in August/September of 1851 by a crew working for the U.S. government.

In November 1853 another crew marked its section corners, walking through the woods and wading the streams, measuring with chain and compass.

[5][6] When done, the deputy surveyor filed this general description: This Township contains several small swamps, and some of considerable size.

There is one stream which runs through the Township is of sufficient size for Milling purposes being [indecipherable] high banks & rocky bottoms.

[7]In 1874 B.F. and Charles McMillan built a sawmill on the Little Eau Pleine River, five miles north of the young town of Marshfield.

"[8] As timber was cut, settlers bought the stump-clogged forties and began to carve out farms.

These eventually focused on dairy, shipping their milk to local cheese factories.

[8] In the early 1900s a community called Riverside coalesced where T crosses 97 and the Little Eau Pleine.

[8] After the timber was cut, some of the low land on the west side of McMillan wasn't very suitable for farming.