A memorial service for Sydney A. Lawless, a retired chemical engineer, will be held at 2 p.m. today at the Engineers Club, 11 W. Mount Vernon Place.
Mr. Lawless, who was 77 and lived on Ednor Road, died Feb. 8 at the Charlestown Nursing Center of diabetes complications.
He retired in 1989 after working at the Aberdeen Proving Ground on disposal of hazardous and toxic wastes for nearly nine years.
Earlier, he did similar work briefly for Acres America, in Columbia, for Harrington, Lacey and Associates in Glen Burnie and from 1968 until 1978 for Whitman, Requardt & Associates in Baltimore.
Before coming to Baltimore, he served for 10 years as chief engineer for two related West Virginia companies, the Industrial Engineering and Construction Co. and the Fuel Process Co.
From 1938 until 1958, he worked for FMC Corp., building and operating mines and chemical manufacturing plants, among them a plant that made the chemical for tracer bullets.
He also wrote a section on coal processing for an engineering manual.
A member of the Engineering Society of Baltimore, the American Institute of Chemical Engineers and the Instrument Society of America, he was a delegate to the Engineers Council of Maryland, which gave him its most valuable service award, a diplomate of the American Academy of Environmental Engineers and a registered professional engineer in Maryland and New York.
Born in New York City, he earned his chemical engineering degree at Cooper Union and was elected to the Tau Beta Pi engineering honorary society.
He did graduate work at West Virginia University, at the Community College of Baltimore, where he studied computer programming and at Towson State University where he studed the chemistry of water and wastewater treatment.
He is survived by his wife of 58 years, the former Wanda Waleski; four daughters, Elizabeth Opal of Falls Church, Va., Helen Scott of New York City, Katharine Feiock of Baltimore, Molly Lawless of Seattle; a son, Joseph D. Lawless of Baltimore; and six grandchildren.