Glad to get you going again...! 
A team track is basically a siding for any industry that would not warrant a dedicated siding. Perhaps the local farm implement dealer (although you have a co-op in your case) wold receive tractors here once or twice a season. Or a coal dealer without his own siding would receive bulk shipments here - dumped at the side of the track to be hauled away later. As for shipping - as Triplex said, just about anything could be sent from here, from a special one time shipment to weekly or monthly output of some local business (maybe a local woodlot owner sells sawlogs to a mill down the line).
The stockyard in your case can be seen as simply a receiving pen for the slaughterhouse, but it could also be used for layover (by law, cattle had to be rested, fed and watered on long trips), or could be used to hold locally grown stock for shipment out.
As for the exact use of the car cards - they operate as before (i.e. one card for each car with a description, reporting marks, etc.). The way bills would be done up to include the nature of the load, the destination, and possibly any specific instructions (like which track or door to spot the car at, or that the reefer is to be iced before departure, or whatever). Once the car arrives at its destination, the way bill is pulled out (or turned or whatever) to show where it is going next.
Another option for you is the switch list, although these can be more labour intensive to create. But it has the advantage of all the orders, lifts, and spots on one piece of paper. You can even include "railroad-wide" rules like speed limits at certain mileposts or what-have-you.
Andrew

A team track is basically a siding for any industry that would not warrant a dedicated siding. Perhaps the local farm implement dealer (although you have a co-op in your case) wold receive tractors here once or twice a season. Or a coal dealer without his own siding would receive bulk shipments here - dumped at the side of the track to be hauled away later. As for shipping - as Triplex said, just about anything could be sent from here, from a special one time shipment to weekly or monthly output of some local business (maybe a local woodlot owner sells sawlogs to a mill down the line).
The stockyard in your case can be seen as simply a receiving pen for the slaughterhouse, but it could also be used for layover (by law, cattle had to be rested, fed and watered on long trips), or could be used to hold locally grown stock for shipment out.
As for the exact use of the car cards - they operate as before (i.e. one card for each car with a description, reporting marks, etc.). The way bills would be done up to include the nature of the load, the destination, and possibly any specific instructions (like which track or door to spot the car at, or that the reefer is to be iced before departure, or whatever). Once the car arrives at its destination, the way bill is pulled out (or turned or whatever) to show where it is going next.
Another option for you is the switch list, although these can be more labour intensive to create. But it has the advantage of all the orders, lifts, and spots on one piece of paper. You can even include "railroad-wide" rules like speed limits at certain mileposts or what-have-you.
Andrew