Looking at the BCG's "Skillbuilding: Guidelines for Evaluating Genealogical Resources", I note that derivative sources may include "transcripts, abstracts, and notes produced from viewing the original ...
Historical scholars classify sources as "primary" or "secondary." Princeton University, "What is a primary source" Library and Archives Canada, "Toolkit: Defining Primary and Secondary Sources" ...
In genealogical research, what is the difference between primary information and secondary information. Why do genealogists bother with making such distinctions?