John Kinzie Clark (1792–1865) was a trader, trapper and a prominent early settler in the Chicago area.

[1] In 1830, Clark settled in the vicinity of today's Jefferson Park area where he built a log cabin on the prairie.

[2] Hired to carry mail by horseback between Chicago and Milwaukee, he would make stops in Deerfield with provisions for early settlers there.

According to New York Times science writer William K. Stevens, Clark was the first owner of a part of Somme Woods in Northbrook.

The site was farmed by the Werhane family until it was acquired as a forest preserve in the 1930s.