David Howard Clark, American ruminant nutritionist, researcher. Member American Society Animal Scientists, American Agronomy Society, American Association for the Advancement of Science, Cache Valley Cyclists (vice president Logan chapter since 1985), American Dairy Science Association, Gamma Sigma Delta, Alpha Zeta. Lodges: Royal Order Yellow Dogs.
Assistant manager dairy plant University Wyoming, Laramie, 1975-1977. Research technician Utah State University, Logan, 1983-1984. Research animal scientist United States Department of Agriculture Agricultural Research Service, since 1984, research leader, since 1988.
Adjunct professor Utah State University, since 1986, instructor 1980-1983, 86—. Chairman Forage Network, since 1985.