Exterior, Farmhouse Building Type, and Wood Siding Material Geoff and Joanna Mouming’s compact modern farmhouse is the first permanent structure at Yum Yum Farm in Wellman, Iowa. On the field that stretches out before 

it, organic vegetables will soon make attentive farmers of the Moumings. The benches on their entry porch were built by Geoff using a design plan by Aldo Leopold, the pioneering Iowa-born conservationist and writer whose spirit and thoughts seem to preside over the house.  Photo 1 of 10 in Farm Fresh