Memorial to William Herbert Yoho1911-1994

E. C. PIRKLE211 Boxwood Road, Aiken, South Carolina 29803

William Herbert Yoho was born in Buffalo, Ohio, on September 30, 1911, and died of heart failure on May 9,1994. He was an associate professor emeritus at the Uni­versity of Florida.

Herbert Yoho received a bachelor of science degree from Marietta College in Ohio and a master of science degree from the University of Iowa. He taught geology at the University of Tennessee from 1946 until 1950. There he was associated with such well-known geologists as Paris B. Stockdale, Harry J. Klepser, Frank Snyder, and Fredrick C. Kruger. Then in 1951 he moved to the Univer­sity of Florida, where he taught physical sciences and geol­ogy until his retirement in 1978. At the University of Florida, he was associated with such highly respected sci­entists as Leonard W. Gaddum, Harold L. Knowles,Richard A. Edwards, and John D. Ridge. After his retirement he remained active in geological studies. He moved to the retirement community at Dowling Park, Florida, in 1985.

Herbert Yoho was active in geological research for many years. He was the first person to describe and interpret the crystalline rocks of the basement in Iowa, a work that eventually resulted in a 1967 report published by the Iowa Geological Survey. This work provided the ini­tial background for later studies by graduate students and Survey geologists. Most of his work, however, was in the fields of economic geology and sedimentation. From 1942 to 1946 he worked with the M. A. Hanna Company, exploring for iron and zinc deposits in the western Adirondacks. His later studies focused primarily on industrial minerals. These studies included investigations of silica sands, clays, phosphates, and heavy minerals. Of these studies, he is best known for his work in Florida on the heavy mineral deposits of Trail Ridge, the kaolin clays and silica sands of the Lake Wales Ridge, and the phosphate deposits of the Bone Valley district. His descriptions and interpretations of the sediments composing Trail Ridge and the Lake Wales Ridge have been of considerable value to both students and professional geologists.

Herbert Yoho was an author or coauthor of numerous papers published in local, national, and international journals. He was also an author of several textbooks, including Natural Land­scapes o f the United States (Kendall/Hunt Publishing Company) and Men and Concepts (D. C. Heath and Company). These texts were used in many colleges and universities.

Even though Herbert Yoho was involved in much valuable geological research, he will be most remembered for his academic activities. He spent untold numbers of hours preparing lec­tures and guiding students in their studies. For several years one of his assignments was to help disadvantaged students who were having trouble adjusting to college. He spent many, many hours helping these students. He enjoyed this part of his teaching very much. Surely there are many students who received a college education who would not have done so without his help and advice.

Herbert Yoho was a member of the First United Methodist Church in Gainesville, Florida, and an associate member of Village Church in Dowling Park. While at Dowling Park he worked

Geological Society of America Memorials, v. 25, December, 1994 145

146 T H E G E O L O G IC A L SO C IE T Y O F A M E R IC A

as a volunteer for hundreds of hours, repairing wheelchairs and walkers and carrying out other types of repair work to help the elderly people in the Dowling Park nursing home. His efforts will be greatly missed.

Those surviving Herbert Yoho include his wife Annette Walker Yoho of Dowling Park; his daughter Anne Yoho Spearman of Jonesboro, Georgia; a sister, Bernice Willey of Canton, Ohio; and two grandchildren.

Herbert Yoho will long be remembered. He will be missed very much.

1953 Provenance study of the heavy minerals in the streams of the Gold Belt portions of Lump­kin and White counties, Georgia; Georgia Geological Survey Bulletin, no. 60, p. 239-244.

1964 (with Pirkle, E. C., and Allen, A. T.) Origin of the silica sand deposits of the Lake Wales Ridge area of Florida: Journal of Economic Geology, v. 59, p. 1107-1139.

1965 (with Pirkle, E. C., and Allen, A. T.) Hawthorne, Bone Valley Citronelle sediments of Florida: Florida Academy of Sciences, v. 28, p. 7-58.

1967 Preliminary report on basement complex rocks of Iowa: Iowa Geological Survey Report of Investigation 3.

------ (with Pirkle, E. C., and Webb, S. D.) Sediments of the Bone Vallely Phosphate district ofFlorida: Journal of Economic Geology, v. 62, p. 237-261.

1970 (with Pirkle, E. C.) The heavy mineral ore body of Trail Ridge, Florida: Journal of Eco­nomic Geology, v. 62, p. 237-261.

1977 (with Pirkle, E. C., and Pirkle, W. A.) The Highland heavy-mineral sand deposit on Trail Ridge in northern peninsular Florida: Florida Bureau of Geology, Report of Investigations 84, 50 p.

SELECTED BIBLIOGRAPHY OF W. H. YOHO

3300 Penrose Place • P O Bo* 9140 • Boulder, Colorado 80301 Printed in U.S.A. on Recycled Paper 12/94