David Burton Todd, 86, an internationally recognized chemical engineer, passed away February 1, 2012, at his home in West Windsor. He had lived in the Princeton and West Windsor area since 1987.

Born in Chester, Pa., Dr. Todd grew up in Freedom, Maine. He received his BS and MS degrees in chemical engineering from Northwestern University, and his Ph.D. from Princeton University. A year of his graduate work was spent as a Fulbright scholar in Delft, Netherlands. He enlisted in the Navy in World War II, served in the North Atlantic, and retired from the Naval Reserve as a Commander in 1972. Dr. Todd’s professional career spanned 60 years. Initially, he was employed in California as an engineer, then supervisor, at a Shell Oil research facility. He moved to the Chicago area to become manager of engineering at the Podbielniak Division of Dresser Industries in 1963, before becoming technical director in 1967 at Baker Perkins, an equipment manufacturer in Saginaw, Mich. Upon transfer to the New Jersey branch, he was promoted to vice president, technology. He never successfully retired.

In 1989, Dr. Todd founded Todd Engineering to provide consulting services, primarily to the plastics industry. He served as principal consultant to the Polymer Processing Institute, as an adjunct professor at Stevens Institute of Technology in Hoboken, and later as a research professor at New Jersey Institute of Technology in Newark.

He was active in professional organizations, being elected to the grade of Fellow in the American Institute of Chemical Engineers and in the Society of Plastics Engineers. He was a member of the American Chemical Society, the Naval Institute, and the international Polymer Processing Society, receiving several awards for his technical contributions. He received 22 U.S. patents and authored more than 100 technical articles. His book, Plastics Compounding: Equipment And Processing, 1998 (Polymer Processing Institute Books From Hanser Publishers) was translated into Chinese.

Dr. Todd also actively participated in civic affairs. In Michigan, he served on the boards of the Saginaw Symphony, the United Way, and several township school boards. He helped found Group Health Service (an HMO) and served as chairman of the board of directors until its acquisition by Blue Cross. He served for seven years on the Montgomery Township Environmental Commission. Dr. Todd is survived by his wife, Marilyn Sweeney Todd. He was previously married to Mary Boekhoff Todd, who predeceased him in 2000. His sister, Mary Todd Pfeifer, McMinnville, Ore., survives him. Surviving also are his daughter Rebecca and son-in-law Charles Klein in Berkeley, Calif.; three sons and daughters-in-law: Brian and Denise Todd in York, Pa., Raymond Todd and Kelley Lehman in Indian Hills, Colo., and Clifford and Tina Todd in Midland, Mich.; five grandchildren; three step-daughters: Janet Sweeney McCallum, Kathleen Miano, and Ellen Allsteadt; and five step-grandchildren.

Interment will be in Chester Pa. Rural Cemetery. Arrangements are being handled by Alloway Funeral Homes, 315 East Maple Avenue, Merchantville, N.J. (856) 663-9085.

A memorial service will be held on Saturday, March 10 at 2 p.m. at the Unitarian Universalist Congregation of Princeton.

Memorial contributions may be made to the Unitarian Universalist Congregation of Princeton, 50 Cherry Hill Road, Princeton, N.J. 08540, (609) 924-1604; or to the Hospice Program of Princeton HomeCare Services, 208 Bunn Drive, Princeton, N.J. 08540, (609) 497-4900.

Theresa M. McQuade

Theresa Margaret (Mosser) McQuade, 91, of Princeton, passed away on Monday, February 6, 2012 at Meadow Lakes in Hightstown.

Born in Bethel, Pa., Theresa grew up in Cranbury, and was a graduate of Hightstown High School. She resided in Princeton for 50 years before moving to Meadow Lakes five years ago.

After high school, in 1943, Theresa joined the WAVES (division of the Navy) and was stationed in Washington, D.C. until her honorable discharge as a Yeoman First Class in 1945.

After returning to the area, she began the Town Typists typing service in Princeton, which she operated for over 30 years. In her leisure time, Theresa was an avid golfer and reader.

Mrs. McQuade was predeceased by her daughter, Dale Lentz; parents Milo and Theresa K. (Fischer) Mosser; brother Milo; and sister Florence. Surviving are her beloved husband of 67 years, Robert W. McQuade; two sons, William R. McQuade of Lawrenceville, and Robert S. McQuade of Pa.; five grandchildren; and three great grandchildren.

After a private cremation, burial will be in the family plot in St. Paul’s Church Cemetery, Princeton.

Arrangements were entrusted to the Kimble Funeral Home, Princeton. Extend condolences at TheKimbleFuneralHome.com.

Malcolm S. Steinberg

Dr. Malcolm S. Steinberg, 81, an emeritus professor of molecular biology at Princeton University, died from complications of lung cancer on February 7 at his home in Princeton. He was surrounded by his wife Marjorie and his four children, Jeff, Julie, Ellie, and Jay.

Great scientists are people who find tremendous joy and purpose in the work they are doing, and whose habits of mind and spirit inspire their colleagues and students. Their gift to the world is a body of work that illuminates the workings of nature. Malcolm Steinberg was a great scientist. His long and productive career began as an undergraduate at Amherst College where he worked on amphibian limb regeneration under the guidance of Oscar Schotté, an outspoken, passionate biology professor with an off-color sense of humor greatly appreciated by young Malcolm. It was while working with Schotté that Malcolm fell in love with research and decided to pursue a PhD instead of the medical education his father had envisioned for him.

Malcolm earned his PhD in 1956 from the University of Minnesota, although he carried out his thesis experiments at the Marine Biological Laboratory in Woods Hole, a place where he spent many happy and productive summers throughout his career, conducting research, teaching embryology, and enjoying lobstering and clamming from his prized Boston Whaler.

In the early 1960s, Malcolm formulated the Differential Adhesion Hypothesis to explain how cells assume their characteristic positions in the developing embryo. From the 1960s through the 1990s, he and his students at Johns Hopkins and Princeton Universities tested the hypothesis, revealing fundamental physical properties of cellular behavior. Scientists worldwide continue to build on his work to understand how the chemistry of cell adhesion, working through physical forces, can reveal important information about tissue regeneration, cancer cell invasion, wound healing, and embryonic development.

Malcolm is survived by a legion of academic offspring who are grateful to have had the opportunity to know him as a scientist, mentor, teacher, and friend. He will be remembered by friends and family as a warm and lovable man with an infectious laugh, for whom just about anything reminded him of a story, whose eyes would light up at the mention of the next meal, who took great joy tending his garden, and who loved to hold hands with his wife Marge.

Memorial tributes may be sent to the Marine Biological Laboratory, 7 MBL Street, Woods Hole, Mass. 02543.