people from southeastern pennsylvania created osborne city in may 1871. they named the settlement after vincent b. osborne, a union army veteran of the american civil war. osborne county also is named after him. osborne city became the permanent county seat in november 1872. in may 1873, a district judge officially said it was a city, but the townspeople did not create a government. five years later, a second attempt was successful, and the settlement incorporated as a city in 1878. "city" was dropped from its name by the mid-1890s.