MR Locomotive Geneology or Family Tree

Does anyone have any insight or knowledge of an N Scale locomotive manufacturer 'family tree'.

For instance - who made 'what' and 'when' ( and sometimes for 'who' )

for example;
Which company X provided drives for company y until 19XX when x became independant/or company z.

Kind of like the Kadee/Micro Train idea.

Sorry I can't explain it any better

 

Spookshow used to have a fairly involved list. You might check him out. just use google.