Rudy Walter Frank, 39, an official of the Department of Education where he was active in union affairs, and a member of the 1970 White House Conference on Children and Youth, died of coronary arrest Feb. 13 at Holy Cross Hospital. He lived in Wheaton.

Mr. Frank was chief of the program development branch in the civil rights office at Education. He was president of the American Federation of Government Employees Local 2677 and was chief steward of the union's national council at the Community Services Administration.

He was the recipient of exceptional service awards from the CSA, the Department of Health, Education, and Welfare and the Energy Department.

Mr. Frank was born in New York state. He graduated from the University of Illinois and earned a master's degree at the University of California at Berkeley. He moved to Washington and joined the Office of Economic Opportunity in 1965.

A victim of polio at the age of 11, Mr. Frank served on Metro's handicapped and elderly advisory committee. He received an Exemplary Service Award from the American Coalition of Citizens with Disabilities.

His marriage to Cheryl Frank ended in divorce.

Survivors include two children, Randall Robert and Berkeley Lynn, both of Springfield, Ill.; his parents, Rudolph W. and Erica G. Frank of Shandaken, N.Y., and three sisters, Heidi Leard of Woodstock, N.Y., and Peggy Vitarius and Nancy Johnson, both of Shandaken.