1860 Postmasters of Butler County, Iowa Postmasters Post Offices Parrott, R. R. Algonquin Early, H. A. Boylin's Grove Mullarky, H. Butler Centre Ikenberry, W. E. H. Elm Springs Sprague, G. Island Grove Fletcher, J. R. Leoni Chamberlin, C. H. New Hartford Parker, P. P. Parkersburgh Leverick, J. Shell Rock Queen, James Swanton Cornwell, A. Willoughby Submitted By: Cathy Danielson ©2009 Genealogy Trails