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How to Make a Family Tree: A Step-by-Step Guide

To make a family tree, start with yourself and work backward one generation at a time: write down what you know, interview your oldest relatives, verify names and dates against records, and add each proven ancestor to a chart. That's the whole method — the rest is knowing where to look and how to keep the chart tidy as it grows.

This guide walks through the eight steps in order, from blank page to a tree you can print, frame, or hand to your kids. Two free tools will carry you the whole way: our printable family tree templates, and the family relationship calculator on our homepage for the moment — and it always comes — when you find a relative and can't tell whether they're a second cousin or a first cousin once removed.

Step-by-step guide to making a family tree

Relationship quick-check: tap a phrase to see the correct term before you add them to your tree.

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How to make a family tree in 8 steps

Step 1: Decide what kind of tree you're making

Pick your scope before you draw a single box, because it changes the chart you need:

Also decide how deep: three generations is a weekend project, five is a hobby, nine is a lifestyle. Starting with 4–5 generations is the sweet spot for most people.

Step 2: Write down everything you already know

Start with yourself and work backward — never the other way around. Genealogy's first rule is to build from the known to the unknown; starting from a rumored famous ancestor and working down almost always builds a fantasy tree.

For each person, capture four things: full name (maiden name for women), birth date and place, marriage date, death date and place. Estimates are fine for now — "abt 1932" is a real genealogical notation. You'll be surprised how much you can produce in thirty minutes, and equally surprised where the blanks are. The blanks are your to-do list.

Step 3: Interview your relatives — soon

Your oldest relatives are living archives, and this step has a deadline nobody likes to say out loud. Call, visit, or video-chat, and ask about:

Record the conversation with permission; you will not remember it all. One good interview routinely fills two whole generations of a chart and adds stories no census will ever hold.

Step 4: Gather documents and verify with records

Family memory is wonderful and wrong about 20% of the time — dates drift, names get americanized, two Great-Uncle Johns merge into one. Verify against records:

The working standard: two independent sources per fact before you write it in ink. Our genealogy for beginners guide covers each of these sources in detail.

Step 5: Choose your format — paper, software, or online

Step 6: Draw the tree using standard conventions

The conventions exist so that anyone — including you in twenty years — can read the chart:

  1. Put the root person (you, or your child) at the base or the left side.
  2. Bloodlines run vertically from parent to child; marriage lines run horizontally between spouses.
  3. Keep each generation on its own row or column — this is the single biggest readability rule. If cousins wander onto the wrong row, relationships become unreadable.
  4. Write surnames in CAPITALS and women under maiden names.
  5. Use b., m., and d. for birth, marriage, death: "KOWALSKI, Anna — b. 1898 Kraków, m. 1921, d. 1967 Chicago."
  6. Mark uncertain facts with a question mark and keep a source note for every date. "Grandma said so" is a legitimate source — label it.

Step 7: Place the tricky relatives correctly

Every real family tree has knots. The rules:

Step 8: Share it, then keep it alive

A family tree is never finished — it's a living document:

Common mistakes to avoid

MistakeWhy it hurtsDo this instead
Starting from a famous "ancestor"Builds a tree on rumorStart with yourself, work backward
Married names for womenErases whole maternal linesRecord maiden names
Trusting one sourceMemory and indexes both errTwo sources per fact
Mixing generations on one rowMakes relationships unreadableOne generation per row
Guessing relationshipsOne wrong link corrupts everything above itVerify with the calculator first
Keeping it on one deviceOne spill from oblivionPrint copies, share files

FAQ

How do I start a family tree with no information?

Start with yourself — you always know generation 1. Add your parents and grandparents from memory or from relatives, then use free records (FamilySearch, the US census, Find a Grave) to work backward one proven generation at a time. Nearly everyone can document 4–5 generations for free.

What's the easiest way to make a family tree?

Print a free 4- or 5-generation template, fill in what you know in pencil, and call your oldest relative to fill the gaps. That's a genuine family tree in one afternoon — you can move it into software later without losing anything.

Should a family tree include aunts, uncles, and cousins?

Only if you want it to. Ancestor (pedigree) charts show just your direct line; descendant and full family trees include everyone. Many people keep both: a clean pedigree chart plus a bushy descendant chart for the reunion wall.

How far back can a beginner realistically go?

In the US, most beginners can reach the mid-1800s — four to six generations — using free census and vital records. Beyond that depends on the country, the surviving records, and luck. Every family eventually hits a "brick wall," and knocking it down is half the hobby.

How do I show divorce and remarriage on a family tree?

Draw each marriage as its own horizontal line (a common convention adds a small slash through a divorced marriage line), and hang each child from the correct biological couple. Step and half relationships then read clearly — see our half siblings vs step siblings guide for how each connects.

What information goes in each box of a family tree?

Full name (maiden name for women), birth date and place, marriage date, and death date and place — the genealogical "vital facts." Keep dates in an unambiguous format like 4 Jul 1898, and note your source for each fact somewhere, even informally.

Start your tree today

Making a family tree isn't a research skill — it's a habit: write down what you know, ask the people who know more, prove it, chart it. Print a free template, fill in your first three generations tonight, and let the blanks pull you forward. And keep the free CousinChart relationship calculator open while you work — every tree-builder eventually meets a "first cousin once removed or second cousin?" moment, and ten seconds beats an hour of finger-counting every time.