Edward Lewis of Sudbury died peacefully on Oct. 20. He was 81.

He was born in Cambridge, the youngest of four children of Rita (Purdy) and Allen Lewis, originally of Newfoundland,

He was an electrical engineer and graduated from Tufts University and NYU graduate school of engineering. He also received an MBA from Northeastern University. He was employed by Raytheon, Sperry Rand Research Center, and Analog Devices, and was adjunct professor at the Tufts graduate school of engineering, and an instructor at Carnegie Mellon, NYU and Northeastern. Ed had 13 or more patents and published or presented many papers on the topics of microelectronics and semiconductor physics.

He had two great loves: family and teaching. Family always came first.

He was a frequent biker at his summer home on Martha’s Vineyard. He enjoyed photography, travel and the companionship of many dogs and cats throughout his life. He was a quiet man with a wry sense of humor. He also relished movies, classical music and mysteries.

He is survived by his wife, Pat, who adored him and with whom he celebrated his 60th wedding anniversary in August 2019; his sister, Dorothea Ravanis; three daughters, Cynthia Lewis, Erica Coleman and Amanda Lewis; and six grandchildren. His siblings Fern Gonzalez and Cliff Lewis predeceased him.

A memorial service will be held at the First Parish of Sudbury at 1 p.m. on Nov. 2.

Donations can be made to All Dog Rescue (http://alldogrescue.org/donate/); or the Animal Shelter of Martha’s Vineyard (https://www.animalshelterofmv.org/donate).