Letter to My Granddaughter or Grandson: What to Write, 6 Sample Letters, and How to Keep Them

Write about the child in front of you, not about grandparenthood in general. A letter worth keeping names something specific you have noticed about them, tells a story from your own life with real names and places, gives one piece of advice you actually follow, and says plainly that you love them.

The family story is the part your grandchild cannot get from anyone else. Emory University psychologists Robyn Fivush and Marshall Duke built a 20-question "Do You Know?" scale (how did your parents meet, where did your relatives grow up), and in a study of 66 teenagers aged 14 to 16, those who knew more of their family's stories showed higher emotional well-being and a stronger sense of identity (Phys.org, 2010). Your letter is where those answers get written down by someone who was there.

Do not worry about sounding like a writer. In four experiments published in Psychological Science, Amit Kumar of the University of Texas at Austin and Nicholas Epley of the University of Chicago Booth School of Business found that letter writers underestimated how surprised and pleased recipients would be, and that recipients cared about the warmth of the gesture, not the skill of the writing (University of Chicago News, 2018). Write the way you talk, and put your effort into the details.

A five-part outline for any grandchild

1. Date it and say where you are. "October 2026, at the kitchen table in Dayton" tells a reader in 2050 when and where you wrote.

2. Name one thing you have noticed. "You read the cereal box out loud to your little brother" proves you were paying attention.

3. Tell one story nobody else can tell. Use names, towns and years: your first job, how you met their grandparent, the house their parent grew up in.

4. Give one piece of advice you live by. One, not ten, and say why it worked for you.

5. Close with love and both names. Sign with what they call you and your full name, so their own children know who wrote it.

Both samples follow the outline above, so copy the structure and swap in your own names, towns and stories. Each gives one sentence of advice, tied to something that happened.

Sample letter to a granddaughter

"Dear Maya, I am writing this at my kitchen table in Dayton, and you are nine. Yesterday you beat me at Scrabble with 'quartz' and did not gloat once, which told me more about you than the score did. When I was your age, your great-grandmother Ruth sold eggs from our porch and let me keep the change in a coffee can, and by August I had saved enough for a blue bicycle. So save a little from everything you earn, because savings buy you choices. You are kind and stubborn in the best way, and you are very loved. Love always, Grandma (Linda Carter)"

Sample letter to a grandson

"Dear Jack, You turned 14 last week, and I keep thinking about what I wish someone had told me at your age. At 14 in Tucson, I swept the floor of my father's hardware store every Saturday and hated it, until Mr. Ortiz at the paint counter taught me to rewire old lamps. It took me 40 years to put the lesson into words: almost any job gets better once you find someone who knows more than you and ask them to teach you. You already do that with Coach Davis. I am proud of you, and I am one phone call away. Love, Grandpa (Robert Hale)"

Occasion letters work best when they tie the milestone to something you lived through yourself, such as your first car or your own wedding. Each sample below runs about 100 words.

Sample birthday letter (16th birthday)

"Dear Ava, Happy 16th birthday. Sixteen is when I learned to drive, in my father's green Ford pickup outside Lancaster, Pennsylvania, stalling at every stop sign while he pretended not to laugh. You get your license this year, so take advice from someone who once backed that truck into a mailbox: go slow, and never drive angry. This spring you stood up for your friend Priya when your group chat turned mean, and that was one of the bravest things I have seen in years. All my love, Grandpa (Walter Brooks)"

Sample graduation letter

"Dear Marcus, Congratulations on your diploma from Ohio State. Your great-grandfather Henry left school after eighth grade to work for the railroad in Columbus, and he would have read your name in the program twice to be sure. You worked two part-time jobs and still made the dean's list, so I will skip the speech about effort. Here is what my first ten years of work taught me: say yes to the assignment nobody wants, keep a list of what you are good at, and call your mother on Sundays. With pride and love, Grandma (Denise Washington)"

Sample wedding letter

"Dear Sophie, Today you marry Daniel, and I get to watch from the second row. Your grandfather and I have been married for 47 years, and the most useful thing I can pass on is what he told me on our first anniversary: 'We do not have to agree on everything, we just have to stay on the same side.' Argue fairly, and say goodnight even on the nights you are annoyed with each other. Daniel, if she lets you read this, welcome to a loud family that is very glad you are here. All my love, Grandma (Margaret Ellis)"

Sample just-because letter

"Dear Leo, There is no birthday or holiday today. I just wanted to send you a real letter with a stamp on it. It is finally cool enough here in Phoenix for me to drink my coffee outside and watch the lizards on the wall. On our video call you showed me your Lego fire station, and I keep thinking about that garage with seven doors. Your dad once built a couch-cushion fort and refused to come out for dinner, so building runs in this family. Draw me what you build next, and it goes on my refrigerator. Love you to the moon and back, Grandpa (Joe Martinez)"

Just-because letters matter most from far away: over half of grandparents have at least one grandchild who lives more than 200 miles away (AARP 2018 Grandparenting Study). Our guide for long-distance grandparents covers more ways to stay close.

Match the content to the moment: a birthday letter looks back at your life at that age, a graduation letter looks ahead to work, and a wedding letter is about marriage. A letter for later is a legacy letter, written for the adult your grandchild will become, like a parent's letter to my son or letter to my daughter.

Leave out anything that would hurt, confuse or obligate the child when they reread it at 30. Read your draft as that grown grandchild and cut any line that makes them feel guilty, compared or caught in the middle.

• Money and property promises. "The lake house is yours someday" belongs in your will, and a letter that contradicts your will can start a family fight.

• Comparisons between grandchildren. Cousins share letters, and "my easiest grandchild" reads badly to the sibling who finds it.

• Old family feuds. A child should not inherit your argument with your sister-in-law.

• Guilt. "Call your grandmother more often" turns a gift into a bill.

• Health details meant for adults. If your health matters to the story, give it one plain sentence.

• Hard family history in a child's card. Save a divorce or an estrangement for a letter meant for them as adults, and write it plainly, with dates and without blame.

Handwrite the copy you give them and type the draft you edit. Drafting on a screen lets you move sentences and cut the lecture, and the handwritten copy gives your grandchild your signature to keep. If arthritis or a tremor makes that hard, print the letter, sign it and add one line by hand. Then record yourself reading it on your phone, so they can hear how you say their name.

Keep three copies on two kinds of media, with one outside your house. That is the 3-2-1 rule the United States Computer Emergency Readiness Team (US-CERT) recommends for any important file (US-CERT, 2012), and a letter to a grandchild qualifies.

Our verdict: the paper original, a scan and a recording are the minimum, and your Persona is the only option here that can answer a follow-up question. Storyworth suits grandparents who want a printed book, since it sends a weekly question by text or email and prints a hardcover book after a year of writing (Storyworth, as of October 2026). See our full comparison of Afterlife.ai™ vs Storyworth.

For paper, the Library of Congress advises cool, dry storage (about 35% relative humidity) away from attics, basements, radiators and vents, in acid- and lignin-free folders, with no paper clips, rubber bands or self-adhesive tape (Library of Congress, accessed October 2026). For scans, the risk is the account rather than the file. Google may delete personal accounts unused for 2 years, including their Gmail, Drive and Google Photos content (Google, 2023), while Apple lets you name a Legacy Contact on iOS 15.2 or later (Apple Support, as of October 2026).

Write the letter on paper, then build your Persona on Afterlife.ai™ so your grandchildren can ask about the stories behind it and hear the answers in your own voice. When Maya is 30 and asks about great-grandmother Ruth's egg money, your Persona tells her the whole story in your words, because you added it as a memory.

1. Start free. Sign up at app.afterlife.ai or in the iPhone or Android app, in any of 42 languages, with no card. Your free build of 25 memories, up to 5 Trusted Contacts and Executor Lock™ setup never expires.

2. Add the stories behind the letter as memories. Every name, town and year in the letter is a question waiting to be asked, so add the egg money or the green pickup in full.

3. Record your voice. Creating your voice is free, your first listen is free, and your Persona speaks in your own cloned voice.

4. Make a Persona Video. Persona Video creates video messages of you, in your face and your own voice, from one 30-second recording, and your first Persona Video is free.

5. Set up Executor Lock™. Name your executor and Trusted Contacts now. At a verified death, Executor Lock™, our patent-pending governance layer, locks your Persona as a perfect snapshot that nobody can edit, retrain or impersonate. The letters and other things you leave for people are released after Executor Lock™ activates.

Example: One Sunday afternoon covers it: an hour drafting, an hour copying by hand and scanning, and an hour adding the letter's stories as memories and recording your voice, all for $0 on the free build. Past the free build, Legacy is US$14.99 a month and Eternal is US$29.99 a month (see pricing), and our page on a Persona for your grandchildren explains why grandparents build one.

Write anyway, and write to the adult they will become. Describe who they are right now (the words they say, the songs they ask for, how they fall asleep), because nobody else will write that down from your side of the family. Give the sealed letter to their parents labeled "For Leo, to open at 16," and read your letters aloud on video calls in the meantime. Our guides to letters to my baby and letters to open on future birthdays cover first-year prompts and birthday letters the parents hand over one at a time.

• AARP: Powering Families, The Essential Role of Grandparents (2026)

• AARP: 2018 Grandparenting Study

• University of Chicago News: People underestimate value of sending letters of appreciation (2018)

• Phys.org: Children Benefit if They Know About Their Relatives, Study Finds (2010)

• Library of Congress: Care, Handling, and Storage of Works on Paper

• US-CERT: Data Backup Options (2012)

• Google: Updating our inactive account policies (2023)

• Apple Support: How to add a Legacy Contact for your Apple Account

• Storyworth: How Storyworth works