Joseph V.B. Wells, 81, a retired official of the U.S. Geological Survey who had been assistant chief of the water resources studies program and Delaware River master, died of a heart ailment July 26 at Fairfax Hospital. He was a resident of Fairfax.

Mr. Wells worked 32 years for the USGS before his retirement in 1961, but he continued to serve as Delaware River master until 1975. That job involved allocation of the use of the waters of the Delaware to states and municipalities.

Mr. Wells who was born in Setauket, N.Y, graduated from Columbia University with a degree in civil engineering. He worked for the Geological Survey in New York, Pennsylvania and Kentucky before he was assigned to Washington in 1946.

Here he served as head of the national program of surface water investigations. He supervised the computerization of stream-flow records and he began the practice of low-flow, flood-flow frequency analysis. He became assistant chief of the USGS water resources study program and Delaware River master in 1959.

Mr. Wells received the Interior Department's Distinguished Service Award shortly before his retirement in 1961.

He was a member of the American Society of Civil Engineers, the American Geophysical Union and the Cosmos Club.

Survivors include his wife, Carolyn, of Fairfax; two daughters, Patricia W. McDonnell of Fairfax and Joan W. Coward of Philadelphia; one brother, Donald M. Wells of Setauket, and three grandsons.

LOUIS J. CASHDAN,

81, a retired rabbi of Temple Solel Congregation in Bowie and a past president of the Washington Board of Rabbis, died of an aneurysm July 28 at Montgomery General Hospital. He lived in Silver Spring.

Rabbi Cashdan was born in Detroit and graduated from the University of Michigan. He studied religion at Hebrew Union College in Cincinnati and was ordained in 1933. He served congregations in Des Moines, Charleston, W.Va., Kansas City, Mo., and Toronto before moving to the Washington area in 1967 to work at Temple Solel. He retired in 1981.

Rabbi Cashdan taught philosophy, logic, and theology at Bowie State College and at American University.

He was a past financial secretary and a former treasurer of the Central Conference of American Rabbis and a member of the D.C. Jewish Social Service Agency.

Survivors include his wife, Eva Cashdan of Silver Spring; one son, David Cashdan of Washington; one daughter, Rochelle Goldstein of Portland, Ore.; one sister, Faye Wallach of Detroit, and four grandchildren.

JAMES H. HOLLIS,

59, who worked for the D.C. Corrections Department for 34 years before retiring in 1980 as its building and grounds superintendent, died of cardiac arrest July 25 at his home in Edgewater, Md.

Mr. Hollis was a native of Washington and a graduate of Eastern High School. He lived in Prince George's County before moving to Edgewater in 1967.

He was a member of the St. Andrew the Fisherman Episcopal Church in Edgewater, a past president of the Mayo Kiwanis Club of Edgewater, and a past worshipful master of Seat Pleasant Masonic Lodge No. 218.

Survivors include his wife, Holly, of Edgewater; two sons, James H. Jr., of Annapolis, and John C., of North Beach, Md.; one brother, William, of Largo, and one grandchild.

JOSEPH D. YANCHULIS,

73, a retired real estate assessor with the D.C. government, who was captain of the Catholic University football team that defeated the University of Mississippi in the Orange Bowl in 1936, died of arteriosclerosis July 15 at the Fort Washington Rehabilitation Center in Oxon Hill.

Mr. Yanchulis, a resident of Oxon Hill, was born in Shenandoah, Pa. He moved to Washington in 1933 to attend Catholic.

In World War II, he worked for the War Production Board and later taught in the Prince George's County public school system. In the early 1950s, he went to work for the D.C. government. He retired in 1972.

For several years until about 1980, Mr. Yanchulis helped calculate odds at the Bowie, Laurel and Rosecroft race tracks in Maryland.

He was a member of St. Ignatius Catholic Church in Temple Hills and a charter member of the Bishop Byrne Council of the Knights of Columbus. Survivors include his wife of 48 years, Marian P. Yanchulis of Oxon Hill; two children, C. Phillip Yanchulis of Clinton and Joann Y. O'Connor of Bowie; one sister, Elynor Matkins of Dayton, Ohio, and seven grandchildren.

ANNE HORNBOSTEL,

86, who gave private lessons in French, German and English after moving to Washington in 1970, died of heart ailments July 27 at Georgetown University Hospital.

Mrs. Hornbostel was born in Landsberg an der Warthe, Germany. She attended the University of Berlin. In 1933, she and her first husband, Dr. Max Wertheimer, a founder of Gestalt psychology, came to the United States and settled in New Rochelle, N.Y. Dr. Wertheimer, who taught at the New School for Social Research in New York City, died in 1943.

Mrs. Hornbostel's second husband, Dr. John Hornbostel, a nuclear physicist at the Brookhaven National Laboratories in New York, died in 1969.

In Washington, Mrs. Hornbostel led an informal string quartet that met weekly in her home for years.

Survivors include two children by her first marriage, Michael Wertheimer of Boulder, Colo., and Lise Wallach of Durham, N.C.; one child by her second marriage, Peter Hornbostel of Washington; seven grandchildren, and seven great-grandchildren.

JANET HUNTER MICHELMORE,

79, a Bethesda resident who had raised funds for Palestinian refugees while living in Beirut, died of Alzheimer's disease and a vascular disorder July 27 at the Carriage Hill nursing home in Silver Spring.

Mrs. Michelmore was born in Scotland and moved to Detroit when she was a child. Before moving to Washington in 1942 she was assistant to the director of the Detroit Bureau of Governmental Research.

In 1946 she moved to New York when her husband Laurence Michelmore took a job with the United Nations. From 1964 to 1971 they lived in Beirut when he was commissioner general of the United Nations Relief and Works Agency for Palestine Refugees. During that period Mrs. Michelmore raised money to purchase materials and equipment to help Palestinian women produce embroidered handbags, tablecloths and other items for sale.

They had lived in Bethesda since her husband retired in 1971.

In addition to her husband of 51 years, Mrs. Michelmore is survived by two daughters, Nancy Clarkson of Bethesda and Patricia Price of Ann Arbor, Mich.; two brothers Glenn and William Hunter, both of Michigan, and four grandchildren.