Leonard Rosen, 88, of Salem, NH passed away on Thursday afternoon, September 22nd, 2022, at the High Pointe Hospice House in Haverhill, MA.

He was the son of Esther and Max Rosen. Leonard was raised in Omaha, Nebraska. He attended local schools where he treasured his education at Central High School and in 2012 was inducted into their Hall of fame for his life achievements and athletic career. He attended the University of Nebraska. While earning his BSEE he also played football as a Cornhusker and competed in the discus and shot put for the Nebraska track team for 4 years. Upon graduation Len started his career as an electrical engineer as he was also starting his family in Omaha. He then moved to California, where he continued his formal education at USC earning his MSEE. As an engineer with Rockwell International, he led integration and test programs for the first cruise missile guidance system, the first ICBM guidance system, the Polaris/Poseidon submarine guidance system and the first military miniaturized semiconductor digital computer. With Raytheon, he was the Program Manager of the Hawk Missile Defense System, The Patriot Missile Defense System and restricted Smart Munitions Programs. During his Residency at ITT, he directed the total effort for air traffic and other radar systems programs for the U.S. forces and over twenty other nations.

During his retirement, Len taught graduate business classes, coached and officiated track and field and volunteered his expertise for various organizations. He was an avid competitor as a master's discus thrower and shot putter and won a coveted national championship in 2014 in the discus throw when he was in the 80-84 age group. He was always immersed in politics and the stock market. He loved mentoring and advising others. Len had a great appreciation for the opera and Broadway musicals and attended live performances as often as he could. He always thought of Nebraska as home and made annual trips to see friends and attend football games.

Len loved his family above all else. He was happiest when with them.

He is survived by his children, David Rosen and his wife Linda of TX, Doug Rosen of CA, Andy Rosen and his wife Sherry of MA, Laura Charewicz and her husband Barry of NH, and Steve Rosen of CT;

His step-children, Dave Walker and his wife Donna, Dan Walker, and Diana Tocci and her husband Peter, all of NH;

His grandchildren, Elissa, Robert, Zach, Drew, Rachael, Max, and Mitchell;

His step-grandchildren, Dan, Emily, Brian, Nathan, and Kristen;

His great grandchildren, Lucas and Lilly;

He is also survived by his brother, best friend and closest confidant Alan Rosen of CA.

In addition to his parents, he was predeceased by his loving wife, Beverly (Mazzocchi) in 2017.

Len will be lovingly remembered as a father, grandfather, great grandfather, father-in-law, brother, uncle and cousin.

Services will be private for the family. In lieu of flowers, memorial donations may be made to: Dana-Farber Cancer Institute & The Jimmy Fund - Dana-Farber Jimmy Fund and New Hampshire and Vermont | SCORE

Arrangements are in the care of the Carrier Family Funeral Home, 38 Range Road, Windham, NH 03087. To leave a message of condolence, please visit www.carrierfuneralhome.