How to Build a Family Tree from Scratch: A Step-by-Step Structure Guide for Beginners

When a person decides to take up family history, the first question is usually this: where does a tree actually begin, and how do you avoid spoiling it from the first branches? The answer is simpler than it seems. A tree is not about looking beautiful on day one. It is about a structure that is easy to extend later. Before you draw lines and enter dates, decide on the logic by which you will record people and the links between them. Otherwise, half a year and a pile of findings later, you will have to redo everything.

Where to start: three generations

Start with yourself, not with your great-great-grandparents. The first generation is you, the second is your parents, the third is your grandparents. This is the minimum skeleton that holds all later work, and it is the easiest place to check that you understand the principle of a tree: every person has two parents, not one, even if you know nothing about the second one yet. Already at this stage it helps to create a card for each person, with a name, approximate dates and at least one fact that will help tell them apart from a namesake in later generations.

What to do when data is missing

Missing data is a separate difficulty. Beginners often leave a blank space in the tree until they find an exact date or patronymic (the middle name formed from the father’s first name), and in the end they lose track of the person altogether. It is better to use conventions from the start: “around 1930”, “presumably”, “name unknown, mentioned as Ivan’s mother”. A card with gaps is not a mistake. It is a normal working status that you can refine later without rebuilding the whole tree.

Adopted children and remarriages

Adopted children, second marriages and children from different spouses are what turn a paper diagram into an unreadable web of arrows. A simple rule helps: for a child in the tree, show both kinds of link if both exist, the biological one and the social one (for example, a stepfather who actually raised the child). Remarriages are easiest to show not by merging two families into one line but with separate cards for each partner, with a clear note of which children come from which marriage. This is exactly where paper or an ordinary spreadsheet starts to lose: there are too many links for one flat diagram.

When the family grows across generations

When the family grows beyond three or four generations, the question of visual organization appears. Experienced researchers advise against trying to fit all relatives on one sheet. Instead, keep the whole tree together but be able to look at one branch only, for example the paternal line or the descendants of one couple. Here the difference shows between a sheet of drawing paper and a digital tool such as Heritage AI: the tree stays one whole, but you can zoom in and open only the part you need without losing the link to the other generations.

Photographs and documents

Think separately about what to do with the photographs and documents for each person: birth certificates, old pictures, letters. On paper they are usually stored apart from the diagram, and over time it becomes unclear which document belongs to whom. In Heritage AI, photos and documents can be attached directly to a person’s card in the tree, so a click on the name shows the face, the dates and whatever has survived of that person, without a separate archive that lives its own life.

A tree is a process, not a one-time task

One more thing beginners underestimate: a tree is not a one-off project. It is added to for years, as you find things and talk to relatives. So choose a format from the beginning where it is easy to make changes: add a new person, correct a date, change how a relationship is worded, with no risk of breaking the finished part. This is why many people at some point move from paper or scattered files to a service such as Heritage AI. Edits on one card do not require redrawing the whole tree, and the family story stays in one place, available to anyone you choose to show it to.

If you are only starting and are not sure you need a separate tool right away, begin small. Write down three generations, mark where data is missing, and handle remarriages by the rule above. When paper or a spreadsheet begins to feel tight, try moving what you have collected to Heritage AI: the tree, photographs and notes about each person come together in one private space that you can keep adding to. A free research plan is available at /en.