An obituary for John W. Porter, former director of the State Agricultural Society and president of the Inter-State Association of the Boards of Agriculture.
Material in the public domain. No restrictions on use.
Howe, Samuel S. "Memoir of John W. Porter." The Annals of Iowa 1883 (1883), 30-31.
Available at: http://dx.doi.org/10.17077/0003-4827.11954