Grave Dowsing Reconsidered Office of the State Archaeologist, University of Iowa, Iowa City, IA 52242. Burials Program: 319-384-0740. This guide may be freely copied and distributed. Check the OSA web site for future updates (www.uiowa.edu/~osa/burials). William E. Whittaker, Ph.D., RPA Office of the State Archaeologist The University of Iowa