Joseph Leo Sliney, Jr. – "Joe", "Dad", "Papa", "Coach" – of Hampton, NH, former Lexington and Concord resident, died at age 86 on December 9, 2020. Papa to fourteen grandchildren and three great grandchildren, Dad to his own five children, Joe to his loving wife Joanne Barrett Sliney for 63 years, Coach to St. Patrick School Junior High School children, and Cheerleader for his grandchildren at hundreds of track and road races. Joe has been an active advisor and resident within the Hampton, NH community. Since his retirement, over the last 19 years he has been an advocate for the Hampton Academy Building committee for the middle school addition and renovation, Winnacunnet High School track installation, and volunteering in the Hampton community by supporting fundraising events with the students at both the middle and high school levels. Joe could be seen enjoying his daily walk absorbing vibrant NH ocean air and breeze along the Hampton North Beach wall, saying hello to the "town regulars" and bumping into the grandkids even on those brisk seacoast NH winter days. Joe became a regular road race "walker" (running when his wife, Joan, was not watching) supporting the St. Charles School Labor Day 5K in Portsmouth, NH (he always won a medal). The Wentworth-Douglass Hospital Cancer 5K in Dover, NH always had Joe's late September support, as well as the local Hampton Middle School Road Races organized by his daughter, Jacqueline J. McCoy of Hampton, NH. Papa could be found walking around the center of town in Hampton checking out his granddaughter's store and activities (Wicked Flannel, Molly J. St. Jeanne). He was a Coach for St. Patrick's Junior High Cross Country and Spring Track teams as he brought life to St Patrick's students winning the Small School championship as he went head-to-head with his son-in-law (Jeffrey P. Cullinane of Hampton, NH) who was coaching one of the local large schools. They had controversy, and Coach had to bring out the rulebooks, but Joe stuck to his technical skills in the high jump dispute. Coach was dedicated and passionate to develop children with their first track trophy ever and the brightest smiles and high pitch screams as they all completed a victory lap around the track. The highlight for Coach was his dual role as Papa, co-coaching with one of his grandchildren, Jeffrey P. Cullinane Jr. with team members including grandchildren, Devinne M. Cullinane and Seamus C. Cullinane. The benefit of Papa as coach allowed the grandchildren training nutrition to include Lindt chocolates from Papa and his loving wife, Nana. Joe was born in Woburn, MA to parents, Joseph L. Sliney and Alice Katherine (Green) Sliney (Arlington, MA). One of Papa's grandchildren, Dr. Conor R. Cullinane, now lives next door to where Papa as a young child went to boy scouts in Arlington, MA, and just one street away from Papa's childhood residence on Warren Street in Arlington, MA. Papa met his third great grandchild, (Apollo Mark Cullinane) in the very same town that Papa grew up, taking walks on the same sidewalks, around Spy Pond. Papa planted in Conor's front yard Iris plants that originated from Warren Street in Arlington, MA out of his own father's garden. Joe graduated from Matignon High School in Cambridge, MA, and competed on the football team while there, and established his lifelong friendships. Joe met his life-long love, Joanne, through an Arlington neighborhood friend. In Joe fashion, quiet but persistent without fanfare, he continued to work hard and completed a Bachelor of Science in Mechanical Engineering from Northeastern University, married his love, Joanne Frances Barrett of Watertown, MA on July 27, 1957, and started his family. During this time, he was also earning his Master of Science in Mechanical Engineering at Northeastern University and bringing to life their first-born child, Mary Frances Sliney, who was born on May 24, 1958 in Watertown, MA and passed away on October 3, 1969 in Concord, MA. Joe's family of five children (Mary Frances, Colleen Marie, Joseph Leo III, Joan Barrett, Jacqueline Jean) grew up in Concord, MA while Dad pursued his lifelong career as a Mechanical/Materials Engineer. He was a dedicated engineer working in his youth for the Watertown Arsenal (Army Research Center) in Watertown, MA, developing new engineering materials and solutions used in the Army field helmets, publishing research on titanium armor, new uniforms, and the US Presidential cars all with the engineering eye for innovation. Joe was a subject matter expert to materials engineering technology, with numerous patents published with such innovation for tubular, seamless, dual-hardness armor plate or another focus on composite metallic materials to improve ballistic metallic armor (protection of the army soldiers), and many more on bimetallic structures that were part of his career at Nuclear Metals in Concord, MA, delivering solutions as a subject matter expert within materials engineering. Joe's career extended into Solar innovation when he started a division in Danvers, MA. producing solar systems for Butler Manufacturing. He designed a new factory, equipment, and was the leadership to bring innovation to market. Joe continued his engineering leadership as he brought his family to Boulder, CO while he worked at the Rocky Mountain Arsenal bringing his materials engineering to 'secret' solutions to be solved at the Rocky Mountain. After his family had a touchdown on the "diagonal" in Boulder, he brought the family back to New England, settling in Lexington, MA while working for Kennecott Copper (Lexington, MA) and then subsequently being recruited back to Natick Labs Research Center. There, he headed up the design and implementation in the Navy carrier kitchens and innovation within the food lab supporting our soldiers' human performance in the field as a lead researcher pushing the army innovation forward, albeit modest and unassuming. While Joe contributed to the soldier team in the field innovating at Natick Labs, he welcomed three son-in laws (Jeffrey P. Cullinane, Robert G. Klucevsek, Joseph W. McCoy), one daughter-in law (Laurie) and the next generation included 14 grandchildren, Robert J. Klucevsek of Salem, MA (Katherine), Jeffrey P. Cullinane Jr. of Denver, CO (Brianna), Patrick F. Cullinane of Barcelona, Spain, Maryann (Klucevsek) Sbraga of Naples, FL (Francesco), Dr. Conor R. Cullinane of Arlington, MA (Robin), Eamon B. Cullinane of Dallas, TX, Kylie E. McCoy of Boston, MA, Seamus C. Cullinane of Jersey City, NJ, Molly J. St. Jeanne of Hampton, NH (Ben), Alexander B. Sliney of Salem, NH, Christina H. Sliney of Salem, NH, Kayla J. Klucevsek of Naples, FL, Devinne M. Cullinane of Watertown, MA, and Mercedes J. McCoy of Hampton, NH. Lastly, three great grandchildren including Kennedy S. Cullinane of Denver, CO, Sophie G. Sbraga of Naples, FL, and Apollo M. Cullinane of Arlington, MA. Joe traveled during his retirement with his wife. He spent many long winters in Naples, FL with his daughter and son-in-law (Colleen and Robert Klucevsek) enjoying their "Wiggins Pass", boating, dining out, and walking the beach each morning. Joe took a trip to Ireland with his wife Joanne, daughter Colleen, son-in-law Robert, and granddaughter Kayla, traveling more than 1500 miles by car over 10 days, sleeping and staying in castles across the old land visiting their family heritage. While in Naples, Papa met his second great grandchild, Sophie, born to his granddaughter, Maryann. Papa's travel life was filled with holiday parties with family, grandchildren and great grandchildren celebrations, birthdays, weddings, grandparents' day at schools, plays, musicals, cross country races, track meets, and road races around the seacoast, and most recently welcoming new great grandchildren visits. Papa traveled less than one year ago to Denver, CO where he enjoyed the mile-high air celebrating year one of his first great grandchild, Kennedy. Papa was most proud of his grandchildren, finding joy moving students in and out of dorms, apartments, and houses (more than once). Papa was a staple at local cross-country races, supporting both his family and local students. A proud memory includes celebrating his youngest granddaughter, Mercedes, graduating from nursing school this year. Papa along with his loving wife, could be seen creating their family celebration luncheons at Latitudes in New Castle, NH with his extended family and Papa bragging to everyone about all fourteen grandchildren. He has been the quiet, dedicated engineer, husband, father, grandfather, great grandfather, community leader, coach, mentor, and advisor for many generations to remember, instilling strong family values and tenacious work ethic. The Irises he planted in Arlington with his grandchildren and great grandchild, will forever grow and offer a reminder of his legacy. "Papa" passed before receiving a message from his granddaughter, Mercedes, via a delayed card in the mail for Thanksgiving, leaving a poignant message, of which we all can agree, "… you are my greatest role model in life and I can't wait to see you again!" We love you Joe, Dad, Papa, and Coach. Family and friends will gather for visiting hours on Friday, December 18th from 2 to 5 pm in the Dee Funeral Home, 27 Bedford Street, Concord, MA. All attendees are required to wear masks and practice social distancing. Due to COVID restrictions, a private funeral Mass will be celebrated on Saturday, December 19th in Holy Family Parish, Monument Square, Concord, MA. Please click here to view the church livestreaming of the Mass on Saturday at 10 am . Burial will follow at Sleepy Hollow Cemetery in Concord, where he will be laid to rest beside his daughter, Mary Frances Sliney. In lieu of flowers, donations in his memory may be made to St. Jude Children's Research Hospital by clicking here . Arrangements are under the care of Dee Funeral Home & Cremation Service of Concord.