Howard H. (Woody) Woodworth, 61, who retired in February as deputy of Agriculture's federal grain inspection service, died of a lung ailment Friday at Holy Cross Hospital in Silver Springs.

During his 38 years as grain marketing specialist with the Argiculture Department, Mr. Woodworth became recognized for his work in improving the marketing of U.S. grain.

He drafted and then worked for enactment of a U.S. Grain Standards Act in 1976, including rules for the inspection and weighing of grain under the Act.

He helped develop a mechanized warehouse sampling program for improved accuracy in grain sampling and worked for a cooperative agreement between the U.S. and Canada, which led to more efficient exporting of U.S. grain through Canadian ports.

In the early 1970's, Mr. Woodworth was credited with helping to reduce a costly grain surplus and achieving a favorable balance of payments by helping supervise the inspection of massive grain shipments to Russia and China.

Mr. Woodworth was deputy administrator of the grain inspection service from its establishment as a separate USDA agency in 1976. From 1970 to 1975, he was director of the agricultural marketing service.

He began his career with Agriculture in 1942, with the War Food Administration as a junior supervisor of grain inspection and later served as a marketing specialist for both seed and gain. He was chief of the grain inspection branch of the agricultural marketing service from 1963 to 1970.

In 1969, Mr. Woodworth received the USDA's superior service award "for unusual initiative and effectiveness in working to modernize the U.s. Grain Standards Act9"

He was born in Evansville, Wis., and earned a bachelor's degree from the University of Minnesota. He earned a law degree from George Washington University while working full-time at the Agriculture Department.

Mr. Woodworth lived in Hyattsville, where he was a former town councilman and chairman of the town budget committee. He also was co-chairman of the town police committee.

He was a ruling elder and chairman of the budget committee of the Riverdale Presbyterian Church in Hyattsville.

Survivors include his wife, Fern, and four children, Patricia, Wade, Marshall and Alesia, all of Hyattsville.

The family suggests that expressions of sympathy be in the form of contributions to the American Lung Association.