Michael Costic

Obituary of Michael Wesley Costic


Michael Wesley Costic passed away on May 3, 2021, on his 80th birthday.


Born in Sayre, PA he grew up in Denville, NJ and lived in Watchung for many years before moving to Hopewell and then to Kinnelon, NJ 26 years ago.


Michael earned his Bachelor’s degree in mechanical engineering from the University of Maryland. He worked as an engineer and manager for Public Service Electric & Gas for 43 years.  Before retiring in 2007, Michael travelled globally, supervising powerplant construction in North America, Europe, Asia and Latin America.  


He was a member of the Rockaway River Country Club and was an avid golfer.  He had always been an athlete, playing baseball and basketball at Morris Hills High School, where he was also the senior class president.


Michael is survived by his beloved wife of 54 years Diane (Mroczek) Costic of Kinnelon, NJ.  He is also survived by his loving daughters Kristin and her husband Joseph McDonald of Mendham, NJ, Mia Costic and her husband Stuart Marker of Hoboken, NJ and Keira Costic of Silver Spring, MD.  He is also survived by his adoring grandchildren Madison McDonald, Joseph McDonald, Zoë Wojnicki, Lila Wojnicki and Avril Piette.


All services will be private under the direction of Norman Dean Home for Services 16 Righter Ave Denville, NJ 07834 www.normandean.com.

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