In February 2021 someone on Mumsnet's genealogy board asked how everyone else was writing up their family history. "I have a very unwieldy 100 page word document detailing direct line and their children, with information in date order," they wrote. Within three hours another member asked the question that decides everything after it: "do you mean how to document it as a tree, or do you mean writing an actual narrative for other people (e.g. in your family) to read about?"
Those are two different documents. A lot of family histories stall because they are trying to be both at once.
A hundred pages in date order is a database that has not been told it is one.
A file that lists every person on your direct line, their children and each fact in the order it happened is real work, and it is worth keeping. It is also, give or take the formatting, what your genealogy software already holds. Later in the thread, the member who asked that question described family websites of this kind as "invaluable in research terms" and "virtually unreadable as a prose narrative". Both halves are fair.
The deeper problem is that this kind of document has no end. Every new record adds a page, so the writer is always one census away from done. Books get finished when they know where they stop.
There are four shapes, and each one knows where it ends.
Sharon DeBartolo Carmack's long-running guide, You Can Write Your Family History, frames the choice as three kinds of book: a biography, a family history narrative or a memoir. Genealogists keep a fourth that is not a story at all.
A biography follows one person and ends when they do. A family history narrative follows a household through a stretch of time, usually built around one event such as a migration, and ends when the event does. A memoir is your own memory of people you knew, and it runs as far as your memory goes. The fourth is a compiled genealogy: the descendants of one ancestor, generation by generation, every statement sourced. Its best-known US layout, the Register System, was created in 1870 for the New England Historical and Genealogical Register, and the National Genealogical Society Quarterly uses a variant of it. A compiled genealogy ends at the living generation. It is a reference work, and it is the honest home for the hundred-page file.
Your records choose the shape before you do.
The same thread holds the clearest example. One member had written their husband's family history as a 60,000-word book and had copies printed for relatives. They explained why it could be a narrative at all: the family "made a load of money in the 19th century", which meant they had "lots of info beyond birth,marriage, death and census to tell the story". They could read the wills and work out what each inheritance did to the relationships inside the family.
Most of us do not have a rich family, so the useful move is to apply the same test to your own papers. For the line you want to write about, sort what you hold into two piles. One pile is events: births, marriages, deaths, census entries. The other is anything that shows a decision or a voice, such as a will, a letter, a court case, a newspaper report or an interview with someone who knew them. If the second pile is thin across the whole line, a narrative will be mostly padding, and a compiled genealogy or one short biography will be the stronger piece. If a single person has a thick second pile, that person is your first book.
Start with one ancestor and one question.
That same member was working a different way. Their research had begun at a dead end in the tree, so they wrote about that relative first. After that, they stopped to write every time they found someone "a bit interesting": a job made obsolete by time, a place with its own story, or "something in the paper trail" that hinted at an unusual event. Small pieces, written as they went.
That is where most people should start. Pick the ancestor with the thickest second pile and a question the records nearly answer: why they left, or where a child went between two censuses. Two or three thousand words is enough to hold a question like that and short enough to finish in a month of evenings. It also tells you whether you enjoy the writing before you commit a year to a book.
Context can fill a gap in the record. Invention cannot.
Every life has stretches with no paper. The temptation is to fill them with what probably happened, written as if it did. Historical context is the fair way to fill them: what the crossing cost that year, or what a mill paid a girl of fourteen. Write it as context and let the reader see the seam. "Most households on that street took in lodgers" is history. "Mary took in lodgers" is a claim, and a claim needs a record.
Where a conclusion was hard won, show the working. The Board for Certification of Genealogists defines a proof argument as "a detailed, written explanation of the evidence and reasoning used to reach a genealogical conclusion". A family biography does not need one on every page, but the form is worth borrowing for the one or two places where you connected records nobody had connected before. An endnote keeps the story moving and lets the next researcher test the join. Our piece on sources you can trust covers how to weigh the records you are leaning on.
Write the citations as you go.
A citation you skip while drafting is one you will not come back for, and in six months you will not remember which of three census images gave you the birthplace. One note per fact is enough: what the record is and where you saw it, down to the page or image number. Most readers skip the notes. The relative who picks up the research after you will not.
The written version is the script for everything else.
A finished biography is the most reusable thing a family historian makes. The questions it could not answer become the list for your next conversation with an older relative, which is what our family reunion interview kit is for. The story itself is most of a script. Our guide to how to turn family history into a video starts from the story rather than the video editor for that reason, and a two-minute film is often the version younger relatives actually watch.
None of this makes the hundred-page file a waste. It is the raw material. The book is one person and one question. Then you start the next one.
