Henry David Iselin

December 23, 2015November 8, 2020
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Henry David Iselin died peacefully in the arms of his mom and dad on Sunday, November 8, after a long battle of complications brought on by leukemia treatment at Boston Children's Hospital.

Henry was born on December 23, 2015, to Toby and Brenna (Whaley) Iselin alongside his twin sister Elodie and to big brother George. Although on this earth for only four and a half years, Henry lived a beautiful life full of joy.

Henry loved spending time at his grandparents' farm in Marlborough, New Hampshire. He rode tractors, took care of the animals, sipped tea with Mimi, and explored the woods. Henry appreciated all of nature's beauty, most specifically the simple little things like rocks and wildflowers. He took his time in almost all things in order to enjoy and appreciate the world's beauty. Henry also enjoyed being at his other grandparents' house, playing in their woods, mowing the lawn, and being with their dogs. Donuts, riding bikes, hiking, building with Legos and magnatiles, listening to music, trains, fire trucks, animals, going to the children's museum, swimming, and camping were just a few of Henry's favorite things. He also loved snuggling with his siblings and parents, and enjoyed playing with his friends.

Gentle, genuine, thoughtful, and sweet are just a few words that capture Henry's special essence. He was always thinking of others. He knew his dad likes collecting coins, so any coin he found he would give to his dad. His mom collected rocks from all of her children, so he saved special rocks for her (her rock jar is very full). Wildflowers were also precious gifts reserved for special people. These are just a few examples of Henry thinking of others. He was thoughtful and deliberate, always considering others' feelings and looking for ways to make them happy. He was a true appreciator of natural beauty and did his best to share that with others to bring them the same joy.

One of Henry's favorite things to do was imaginative play with his brother and sister. He loved playing dogs with his sister and taking his brother for rides in his imaginary Gator. They all loved playing wolves together. He also spent many hours playing on his pedal tractor. Parties, reading books, car rides, camping, hiking, singing at family meals, walking his dog, and bike rides were just some of his most loved things to do with his family.

Henry was a student at the Montessori Schoolhouse for over 2 years, and he was set to begin preschool at Trinity Christian School before he got sick. Henry made friends wherever he went - from his friends at school to the oncology team at Dartmouth to the ICU team and specialists in Boston to the Keene Firefighters and beyond. There wasn't anyone who came in contact with Henry who didn't fall in love with his beautiful, sweet soul.

At 16 months old, Henry was diagnosed with leukemia. He fought that battle hard and won. He was the best patient - always taking his medicine and listening to his doctors. He was a true champion and a brave fighter, fully earning and deserving of his HenryTheBrave hashtag. He loved his "Doctor Days" at Dartmouth because after treatment, he got donuts to celebrate another successful day of battle. Although he was treated for leukemia for 3.5 years, Henry lived a very normal and healthy life. Everywhere he went, he emitted peace and joy. His laugh and smile were contagious. He was gentle to all creatures and kind and loving to all people.

If it weren't for Henry's compromised immune system from his leukemia treatment, he would have been able to fight and overcome the infections he got in August. Although he finished leukemia treatment the day before he was admitted to the hospital, it was the cancer treatment that weakened his sickness fighters. Because of this, we are asking that in lieu of flowers, if you are looking for a way to help, please consider donating to Henry's memorial page through Alex's Lemonade Stand Foundation. We are hopeful that with the research they fund, one day children will be able to beat cancer in a way that is less harmful to their bodies. (

Henry is survived by his parents, Toby and Brenna Iselin, his big brother George, and his twin sister Elodie. He is also survived by all four grandparents (Mary and George Iselin and Dave and Laurie Whaley), Uncle Jake and Aunt Rianne, Uncle Geordie and Aunt Amanda, Uncle Devin and Aunt Zelle, Uncle Sean and Cousin Caitlin, dozens of cousins, great aunts and uncles, and many dear and caring friends (both human and animal).

Although black is a most appropriate color for this occasion, as we are deeply mourning the loss of our sweet boy, since Henry was so passionate about his love for the color blue, it would be wonderful to see people accent their black with blue. The wake for Henry will be held at Fletcher Funeral Home, 33 Marlboro Street, Keene, NH on Friday, November 20 from 4:00 pm to 7:00 pm. Please be sure to wear a mask and social distance. The funeral will follow the next morning, Saturday, November 21 at Trinity Lutheran Church, 100 Maple Ave, Keene, NH at 10:00 am. Space is limited, but there will be a link to a live stream on the Funeral Home website. All are welcome to the graveside service that will be held following the church service at 151 Laurel Street in Marlborough, NH. Everyone in attendance at the wake or service is welcome to bring a small rock or memento to add to Henry's memorial. There will be a large outdoor celebration of life come warmer weather in 2021.



  • Visitation

    Friday, November 20, 2020

  • Funeral Service

    Saturday, November 21, 2020


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Henry David Iselin

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Caitlin Smith

November 21, 2020

HenryTheBrave was a true inspiration to everyone around him. His sweet personality and loving heart brought a joy and light that was contagious. Our hearts breaks for your loss, and your whole family is in our prayers. -Team BrAvery (Caitlin, Chris, Colin & Avery Smith)

Heidi Rinehart

November 21, 2020

Dear Brenna and Toby:
My heart goes out to you on the death of your precious son, Henry. I will be keeping you and your family in my thoughts and prayers.
Heidi Rinehart, MD

Barbara Cohen

November 21, 2020

Dear Toby and Family,

Finding the right words at a time like this is impossible. My sincerest condolences on Henry’s passing. I cannot imagine how much you will miss your little guy. May he rest in peace.


Susan Velez

November 20, 2020

We send our condolences to all of Henry's family, friends, and loved ones after this terrible loss. There are just no words to convey how deeply we are saddened by his passing after such a brave fight. We send our thoughts and prayers to all of you for strength in the days ahead. There is a brave new angel up in heaven watching over you all........ Jim & Sue Velez

Jane Holmes

November 18, 2020

I was privileged to be able to spend a few months working and playing with Henry and his family. We shared many cups of tea at the toy kitchen with Elodie and George. He was a sweet and spunky little guy!
Please accept condolences from your friends at Rise.

Tammy Lloyd

November 14, 2020

I met Henry when I became his LNA. We spent 40+ hours week- at first I was very scared and thought to myself can I really give this baby boy what he needs. I was scared because I lost both my parents to cancer and here I am caring for someone baby boy with leukemia. But Henry and I just hit it off , he loved to cuddle and read books( Good Night Moon was one of his favorite) , going for walks in the neighborhood in his stroller or on his bike, playing outside and singing while playing his guitar. Henry's love of the outdoor came through in the special gifts he would give me of rocks, a ziploc bag of special dirt he dug special just for me and many beautiful flowers. I will always cherish these gifts forever as I still have them in my cars center console as Henry always wanted to make sure I had his special gift he gave me close to my heart. When I stopped caring for Henry he still would send me pictures of him and I playing or holding hands. Every time we visited Henry would want me to know everything that had happened since we were last together which truly touched my heart. He was such a special little boy and I feel so blessed to have been able to be part of his life. Thank you Brenna and Toby for letting me be part of your sweet Henry's life. He touched my heart in so many ways. I am so glad I didn't let my fear stop me as I would never have gotten to know you(Brenna and Toby) and your family and enjoyed the love and time I shared with your little boy, Henry.

Nicole Corcoran

November 14, 2020

Brenna and family,
I am so so sorry to hear of Henry's passing. I have followed along the whole time and have prayed the whole time. My hope and prayer now is that you find peace. I don't know how, but I hope you do.
Lots of love,

Nancy Lory

November 14, 2020

Brenna and family,
Words cannot convey my deepest sympathy for the loss of your precious son. You captured Henry's spirit, joy, and soul that shows he loved and was loved.
Dr. Nancy Lory

Clara Valentine

November 13, 2020

Toby and Family,
I am so deeply sorry for the loss of your precious angel. I will keep your family in my thoughts and prayers. Just know he will always be with you in spirit. Fly high sweet boy.

Josephine Rhoades

November 13, 2020

To The Family Of this Dear Child Henry I want to extend My Very Deepest Condolences To His Family during this difficult time ~ <3


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