https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12273080Edit ImageSaveSaveEditCropCustom TextLois Slinker teaching the fifth grade in one-room schoolhouse. Grundy County, Iowa. Sourced from the Library of Congress.View public domain image source hereMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1200 x 926 px | 300 dpiLarge JPEG 3500 x 2700 px | 300 dpiBest Quality JPEG 13864 x 10696 px | 300 dpiTIFF 13864 x 10696 px | 300 dpi | 141.52 MBFree DownloadLois Slinker teaching the fifth grade in one-room schoolhouse. Grundy County, Iowa. Sourced from the Library of Congress.More