I have J. C. Northrop, sec. 20-29-16 South Fork,31 1/2a, Maquoketa, Sec. 19 Monmouth, 30a. E. R. Northrop, sec. 14 South Fork, 30 a, Maquoketa. Laf., Northrop, sec 9, Farmers Creek, 10a, Iron Hill. Northrop & Shellenberger,sec 12 South Fork, 10a Maquoketa. These are listed in the Farmers Dept. of Jackson Co, Iowa Directory of 1878. Marge