The 1854 Gazetteer of the United States by Thomas Baldwin shows:

PULASKI, a county in the N. W. part of Indiana, contains about 430 square miles. It is intersected by Tippecanoe river, an affluent of the Wabash. The surface is mostly level, with a few low sandy ridges. About one-half of the county is prairie, and the other portion produces a scattered growth of oak and hickory, usually termed "oak openings." The soil is productive. Indian corn, wheat, oats, hay, cattle, and swine are the staples. In 1850 this county produced 95,915 bushels of corn; 27,593 of wheat; 15,050 of oats, and 2276 tons of hay. It contained 1 church, and 161 pupils attending public schools. A railroad is projected through the county from Chicago to Logansport. Organized in 1839. Capital, Winnamac. Population, 2595.