Woodsville , N.H. - John Dixon Griswold, 88, died on Tuesday, October 17, 2017 at his home.

He was born March 31, 1929, in Yonkers, N.Y., a son of Dixon Blodgett and Frances Elizabeth (McAdam) Griswold.  He was raised in Hastings-on-Hudson, N.Y., graduated from Hastings High School in 1946, and earned a Bachelor of Mechanical Engineering degree at Cornell University in 1951.  An ROTC Distinguished Military Graduate, he served during the Korean War at Frankford Arsenal, Philadelphia, PA and at Aberdeen Proving Grounds, MD where his twin sons Peter and David were born in 1952 to his first wife, Jeanne Staples, who was also the mother of his  third son, Andrew, born in 1964.  Following a divorce in 1971, Mr. Griswold married Joyce Vanderhoof  Trilsch in 1977.  She died in January, 1983, and in September of that year, he married  Mary Josselyn McKey Lofgren, whom he divorced in 1985.  In 1988, he married Karen Woelfle Humphrey Greenlee.

Following military service, Mr. Griswold lived in Weymouth, MA; Hingham, MA; Hanover, NH; Norwich, VT; Lyme, NH; and Woodsville, NH and worked as a management consultant for over 45 years until retiring in March of 2002, at first with Arthur  D. Little, Inc., in Cambridge, MA from 1953 to 1970. Then as an independent, he served clients ranging from independent entrepreneurs to some of the world's largest and best known corporations.  His work included assignments in market research, corporate planning, acquisition evaluation, new enterprise development, regional economic analysis  and executive search.  In 1963, he co-authored Mergers and Acquisitions – Planning and Action for the Financial Executive Research Foundation, and in the 1970s and 1980s, prepared a number of comprehensive industry study reports which were published by Frost & Sullivan, Inc. and sold worldwide.  In 1985, he was recognized in Who's Who in Industry and Finance .

Mr. Griswold enjoyed a lifelong career as an amateur musician. He took up the clarinet in 4th grade and subsequently added proficiency with flute and saxophones, playing in concert bands, marching bands, and swing dance bands in school, college, and later life.  A vocal musician as well, he appeared in several community theater musicals in the 1960s and 1980s.  He sang for several years with the Thetford Chamber Singers, and with the North Country Chorus, as well as in church choirs.

An avid bicyclist, he rode over 20,000 miles in the 1980s, including a ride to the top of Mt. Washington, and several 100-mile bike-a-thons for the Norris Cotton Cancer (in which he was among the top five fund raisers each year.)

Mr. Griswold is survived by his wife Karen of Woodsville; a sister Gayle, of Rockland, ME; sons Peter of Quincy, MA, David of Auburn, ME, Andrew of Medford, MA; three grandsons, two granddaughters, and several nieces, nephews, grand nieces and grand nephews.

In keeping with John's wishes, there are no public services being planned at this time.  A private family gathering will be observed at a later date.

In lieu of flowers, please make your memorial donation to the charity of your choice.