Marvin B. McGuinness, 78, of Fayetteville, died suddenly from complications of ALS disease. He was born in Utica, NY in 1941 the son of the late George and Lorena McGuinness. Marv received his BEE from Manhattan College in 1963 and his MEE from Rensselaer Polytechnic Institute in 1964.

Marvin was employed by General Electric and Lockheed Martin in Syracuse for 39 years prior to his retirement. He held positions of Manager of Systems Engineering, Manager of Engineering and Director and site manager of Ocean Systems Programs.

During his career he worked on numerous development and production programs for the U.S. Navy.

Following his retirement in 2003, Marv served as a management consultant to Syracuse Research Corporation, SERTec, a subsidiary of SRC; and Lockheed Martin. He was a member of the Board of Directors of SERTec from its inception in October 2006 until his permanent retirement in 2014.

He is survived by his wife of 56 years, Jeannette (Bojarski) McGuinness. Marvin is predeceased by his sister Sharon Ann Sturr.

Marv was a parishioner of Immaculate Conception Church for 36years.

A Mass of Christian Burial will be Wednesday at 12:00 p.m. at Immaculate Conception Church, 400 Salt Springs Rd, Fayetteville, NY 13066.

Entombment will be at Holy Trinity Cemetery, Utica at a later date.

Contributions in his memory may be made to the Semaritan Center.