convenience I have split events into various categories, such as
discipline' for individuals - which might record Court
Martials, punishment or dismissal - or milestones' for ships -
which might record launch, rebuild or loss. Operational data
will undoubtedly need to be added at a later date but is not entered
at present. Every event is tied to the date and source of data.
many instances, the sources differ over date for the same
event. In general terms, I use the most convincing primary
source as the master' date. Except for obvious errors in
secondary sources, I record these alternatives on the database and,
if subsequent clearer information becomes available, it is a
simple matter to change the master' date. Information on
alternative data is not available in standard reports.