Practical, in-depth answers to the questions family historians actually ask — written to be accurate, specific, and worth citing.
The five-element benchmark professional genealogists use to decide when a conclusion is proved — and how to meet it.
How-toThe elements a census citation needs, and the three forms every source should have — with a worked example.
GuideWhat a centimorgan is, how the shared total predicts a relationship, and where the prediction breaks down.
How-toThe file format that moves a family tree between programs — what it is, the versions and encodings, and how to import, edit and export one.
GuideMost brick walls fall to a method, not a lucky record. Here is the method.
How-toTurn a wall of anonymous matches into a map of family lines, without losing track of what you have worked out.