(Double Windmill, IA-81-04) S. of Early, Boyer Valley Township, Sac County, IA. US71 S. 0.8 miles from jct with South Av. in Early to the quilt on the E. side of the road at 2384. Johnson Family. (N42 26.779 W95 08.829) Photos by Jack & June Schmidt 7-16-12.