It was approximately the year of 1866 when a caravan of 52 wagons of German descendants left Wisconsin to homestead in Nebraska. The trip from Wisconsin to Nebraska took six weeks. It has said that there was some confusion once they reached the place, which is now Hadar. Some wished to settle there, others wanted to locate in Madison County and others wanted to go on forever. Argument ensued over the problem of where the settlers would settle. The argument became quite heated. Rev. Heckendorf who had been called as a minister for this colony, try to settle the dispute. He finally got a pole, dug a hole can placed the pole in it. With the axle grease from the wagons he wrote on the pole with large letters “H-A-D-E-R” which when translated into English means “fight or quarrel:. The “E” was changed to ”A” because another town in the United States had the same name. This pole stood east of the railroad tracks and north of where the depot once stood – almost in the main street of the town and remained there for many years.
The argument was finally settled in each located where he wished. Some returning to Madison County, some went further north and others chose to stay around Hadar.
Another story of the naming of Hadar was that neighbors living on opposite sides of the Hadar creek were always quarreling soul August Brach called it “Hadar Vasser” which means,” Hate water”. The “E” was changed to “A” and the town was named Hadar
Hadar is the oldest town in Pierce County and was platted on June 26, 1883.
On July 16 1983 Hadar celebrated their centennial the full day of festivities.
At the time of the one 100th celebration there were approximately 209 the residents.
The 2010 census lists 293 people in Hadar.