Mark S. Reinsberg, 58, former head speech writer at the Department of Transportation and retired publications director for Resources for the Future in Washington, died of cardiac arrest Tuesday at his home in Columbia.

Mr. Reinsberg joined the Transportation Department in 1967 as head speech writer under then secretary Alan Boyd, but also wrote speeches for vice president Hubert Humphrey and Mrs. Lyndon Johnson during that time.

He left the department in 1968 to work with private consulting firms. He was publications director for the National Bureau of Economic Research in New York City before returning to Washington in 1972 as publications director of Resources for the Future. He retired for reasons of health in 1974.

Mr. Reinsberg was a native of Chicago.. A graduate of the University of Chicago, he earned a master's degree in English at Colorado College in Colorado Springs. He served with the Army in Europe and the Pacific during World War II. In 1950 he traveled to the Netherlands as a Fulbright scholar and studied 17th century Dutch literature at the University of Utrecht.

Mr. Reinsberg returned to Chicago in the early 1950s and spent the next 10 years teaching English, first at the University of Chicago, then Wright Junior College, and finally at the University of Illinois' Chicago campus.

From the early 1960s until joining DOT in 1967, Mr. Reinsberg was a speech writer for Northwestern University and its Transportation Institute.

His marriage to Diane Senor ended in divorce.

Survivors include his wife, Carol L. Reinsberg of Columbia, whom he married in 1972; three stepchildren, Erica Glasener of Silver Spring, Evan Glasener of University Park, and Karl Glasener of Columbia, and a sister, Helene Ziff of Miami, Fla.