AD : Astrodata AG

AL : Alan Leo: '1001 notable Nativities'

DS : Miscellaneous data collections

EA : According to the person himself/herself

GQ : The Gauquelin's data collection

ME : Meridian journal

NO : Niehenke, time officially recorded

NU : Niehenke, time not recorded

PO : Private source (relatives etc.), officially recorded time

PU : Private source, time not officially recorded

RO : Databases of L. M. Rodden

XY : Various sources

XZ : Miscellaneous small magazines