Joseph Warren Beardsley (1820 – August 27, 1868) was an American physician, politician, and Wisconsin pioneer.
The 1862 Wisconsin legislative manual and later works that relied on that source inaccurately listed his first name as "James".
He was educated as a medical doctor and came to the Wisconsin Territory about 1845, working as a physician and surgeon in Johnstown, in Rock County.
[1] In the mid-1850s, Beardsley relocated to Pierce County, in northwest Wisconsin, and operated a general store.
[6] His uncles, Samuel and Levi Beardsley, were prominent lawyers and politicians in New York, and served in several elected offices.