Jefferson, Thomas, [54], [88], [89]
Jobber, corn, [190]
John Deere Co., [203], donor, [223], [224], [245]
Kanter, Clayton, donor, [178], [179]
Kelly, Michael, [310]
Kennedy, Charles, [309]
Kennedy Barbs barbed wire, [308]
Kinsman, Pelatiah, [48]
Kittleson, Ole O., [299]
Kloch, Henry, [30]