In an obituary in Monday's editions about Edward C. Jaegerman, 68, a former official of the Securities and Exchange Commission who died Feb. 19, an incorrect name was given for one of his surviving daughters. She is Megan Jaegerman, of Washington. The obituary also should have stated that Mr. Jaegarman's wife, Miriam is a former teacher of artistic children and now is a teacher at the William E. Farquhar Middle School in Olney.

Edward C. Jaegerman, 68, a former chief investigative counsel for the Securities and Exchange Commission who earned a reputation for toughness in a career that spanned more than 30 years, died Tuesday at his home in New York City after a heart attack.

Mr. Jaegerman was born at Philadelphia and grew up in Bridgeport, Conn. He earned bachelor's and law degrees from Yale University and joined the SEC in 1936.

He was hired by William O. Douglas, who was chairman of the agency before being named to the U.S. Supreme Court. In the course of his career, Mr. Jaegerman took part in more than 500 investigations. He was a senior trial attorney, chief of the office of special investigations and then chief investigative counsel from 1963 until his retirement in 1968.

Among the notable investigations on which Mr. Jaegerman worked were those involving Alexanger L. Guterman of Brazil, Walter F. Tellier, who was known as the king of new stock issues, and Earl Belle once called the "boy wonder of Wall Street."

His last big case was that of the Texas Gulf Sulphur company. This led to a landmark ruling concerning the use of information by company "insiders." As a result, some top Texas Gulf Sulphur officials were found to have violated the law by profiting from knowledge of a mineral discovery before the discovery had been announced to the public.

After his retirement from the SEC, Mr. Jaegerman moved to New York and became managing partner of the Charles Plohn & Co. brokerage firm. Shortly afterwards, the firm was accused of violating various security regulations and was formed to dissolve.As a partner, Mr. Jaegerman was among those held responsible.

He fought charges brought against him by the SEC, but eventually was barred from being associated with member firms of the New York Stock Exchange. He was acquitted of separate charges brought by the State of New York.

After that episode, Mr. Jaegerman engaged in a private law practice in New York until his death.

Survivors include his wife, Miriam, a teacher of handicapped children who lives in Bethesda; two sons, Petersen, of Washington, and Alexander, of Boston; three daughters; Betsy Worcester, of Harrington, Mr., Betsy Jaegerman, of Washington, and Annie Jaegerman, of Madison, Wis.; a sister, Beatrice Lebov, of Hamden, Conn., and one granddaughter.