Ray C. Jurgensen...[et al.]. by C. D. Haagensen ...[et al.]. Daniel L. Jensen...[et al.] E. O. Riecken...[et al.]. Nancy Matheson...[et al.]. Donald H. Sargent ...[et al.]. by Jorgen Jensen ...[et al.]. Adam Jorgensen [et al.]. David Freedman...[et al.]. G.G. Lauenstein...[et al.].