So I am a little confused by the 56 series and the 59 series style contact. Notice one female connector has two loops that retain the male end whereas the other female connector has a flat plate. Can they both be the same series?

I'm getting a little out of my area of knowledge here so hopefully someone will double check me. But...

To me those do indeed look like the same series of terminals. If I recall right the difference in that the 59 series is slightly wider than the 56. I think what you are looking at is just two different production designs. If you compare most of your underdash stuff, with the terminal size on a sealed beam headlight and its wiring you should see it.

For specificity sake, when you look up replacements in a catalog both the male and female ends you show there are "terminals" the plastic housings they go in that insulate the bare terminals to prevent shorting, have one or multiple positions, and may or may not have a locking clip, are called connectors. Again in catalogs, I know what you meant though.

EDIT- HEY! I got it right! Here you go.
Packard 56, 58, and 59 series
Never seen a 58 anywhere on a car myself.

Does anybody know if the turn signal harness plug is available new anywhere for 68-69 B bodies? I would like to get a new one if possible and keep the original for a spare.

Okay... here is another question for mopar electrical trivia. I have the 1973 manuals and read through the electrical connections. Anyways, there is this yellow wire in the steering column that is alluding me and not documented in the diagrams. The column has the 8 wires from the turn signal, the 5 from the ignition switch, 2 for the key in buzzer, and one for the gear indicator lamp. Somehow I have this extra yellow wire approx 14 gauge hanging out with a single 56 connector. Any ideas?

Illumination, either for the ignition switch or if it's a column shift the shift indicator...

The column is a column shift but the gear indicator wire is orange and is accounted for...

Yup, ignition switch light, it plugs into the time delay relay harness..

Anybody know where I can get the metal crimp on connector for the lights in the dash?

Try this..

http://www.repairconnector.com/products/...-Connector.html

What do lights A, B, C do?

Try http://www.mouser.com/Connectors/Automotive-Connectors/_/N-1ehb5/ for some of those electrical connectors. I just built a power window harness from scratch, complete with relays, and got all of the necessary factory style connectors from this site.

I retained the original parts for the power window switches. I bought an XV Power Window kit and wanted to make the harness that connects to the relays at the bulkhead connector and also wanted to add power window relays to the XV harness. I bought a set of nice used Mopar power window switches that came with the connectors with a short pigtail for each. I plan on adding the Mopar style switch connectors to the XV harness once I know everything works right with the setup as is. Mouser has a lot of the oddball connectors for relays, but I don't know if they would have anything for the original power window switch type connectors or not. It took me some time searching their site to find what I needed, but then again I wasn't sure how to describe or find what I was looking for at first.