How to read a nineteenth century company ledger
A ledger is not a story. It is a list of numbers kept by a bookkeeper who assumed everyone reading it already knew what the numbers meant.
I have been the archivist at a county historical society in Maine since 1998, and ledgers are the material people most often ask to see and most often give up on within twenty minutes.
What you are actually holding
Most nineteenth century business records fall into two kinds.
A daybook is chronological. Transactions recorded in the order they happened, which is useful if you want to know what occurred on a particular day.
A ledger is organised by account. One person or one entity per page or spread, with everything relating to them gathered together. That is what you want if you are following an individual.
There is often a third book, an index, which maps names to page numbers. Ask whether it survives. It turns a week of work into an afternoon.
The columns
The left side of the spread is debit, the right is credit. In a store ledger, the left is what the customer took and the right is what they paid.
Run your eye down a page and you can see the rhythm of somebody's year. Purchases through the winter, a large credit in the autumn when a crop came in or a lumber contract settled.
Watch for the balance carried forward at the top and at the bottom. That tells you whether a person was running a debt across years, which was extremely common and is one of the most informative things in the book.
The handwriting and the abbreviations
It is not as bad as it looks. Nineteenth century business hands are usually clear once your eye adjusts, and a bookkeeper writes the same words thousands of times, so you learn their particular version of each one.
Start with a page where you can read most of it and build a key of their abbreviations. Do this once and the rest of the volume opens up.
Common ones: do. means ditto. Cr and Dr are credit and debit. Lbs, bbl, bu, cd are pounds, barrel, bushel, cord. A long s that looks like an f in older hands. Money in pounds shillings pence well into the nineteenth century in some New England books, out of habit.
Dates are frequently written as the month then the day, and the year appears once at the top of a section and not again.
What a ledger can actually tell you
Payment in kind. In rural Maine a great deal of it. A man's account credited for days of labour, for cordwood, for potatoes. That tells you what people did and what cash was worth locally.
Relationships. Who guaranteed whose account. Whose debt was settled by a relative. Who was allowed credit through a bad winter and who was not.
Household detail. What a family bought and when. Cloth in quantity before a wedding. A coffin. Medicines.
And absence. An account that stops abruptly in March and never resumes is usually a death or a departure, and you can often confirm which from other records.
What it cannot tell you
Motive, and anything anybody thought.
It also will not tell you about people who did not have accounts, which in most communities means the poorest, and often means women, whose transactions were usually recorded under a husband's or father's name.
That gap is a fact about the record, not about the community, and I have watched researchers draw conclusions from it that the source cannot support.
Practical advice
Photograph the pages you need rather than transcribing at the desk. You will read them better at home and your neck will thank you.
Record the volume, the page number and the repository for every image. Sounds obvious, and I have had people come back a year later with two hundred photographs and no idea which book they came from.
Transcribe exactly, including the spelling. Correcting as you go destroys evidence.
And ask the archivist what else exists for that business. A ledger on its own is a fragment. A ledger with the daybook, the correspondence and a payroll book is something much better, and those are often in the same collection, uncatalogued, in a box nobody has asked for.
