This Benjamin F. Niswander was born 1834 Columbiana Co OH and migrated to Circleville, Jackson Co KS where he was enumerated as Neiswander, Nisewander, Niswander. See Find a Grave for his memorial in Jackson Co KS. Sounds like he might relate to your Niswanders of Ohio. I am not related. Just trying to help.
Obituary. Benjamin F. Niswander was born in Columbiana county, Ohio, October 16th, 1834. His father moved to Indiana in 1849, where the son lived with him until April, 1857, when he came to Kansas, and with others did what he could to make this a free State. In the year 1858, he purchased the farm near Circleville, in this county, which he still owns, and which he improved and lived on until he came to Holton, over two years ago, to discharge the duties of his office. September 29, 1859, he was joined in marriage to Miss Sallie Ann Fellers, step- daughter of George Wolheter, formerly of Circleville. Six children blessed the union, the oldest 20, and the youngest 7 years, all living. In the fall of 1877, he was elected Sheriff of this county, and was again re-elected last fall. About the last of February, in discharge of his official duties, he contracted a cold which resulted in a severe attack of pneumonia until Saturday afternoon about 3 o'clock, when death put an end to his pain. His remains were buried at the cemetery, south of Circleville, Sunday, at 3 o'clock, by the Independent Order of the Odd Fellows, of which the deceased was a member. Rev. Dr. Denison conducted religious services at the residence, in this city, at 11 o'clock a.m. The family are left in comfortable circumstances. They have a good farm in Jefferson township, besides some improved land, and property in this city, worth several hundred dollars. They will get about $1,100 insurance from the Odd Fellows Funeral Aid ... The Holton Recorder, April 1, 1880.