The turn signal switch is in the upper right corner. The ignition switch is right under it. The switch also calls out the pinouts and how they connect as you go from START, RUN, OFF, OFF-LOCK, and ACCESSORY.
In 1969 (and later) all GM steering columns had the ignition switch mounted on top of the steering column down under the dash. There were two different type of switches. One switch for the standard (non-adjustable) steering columns. Another mirror image switch for all GM adjustable (tilt as well as tilt & telescoping) columns.
I believe that the above schematic shows the standard column switch. You are looking into the switch from the passenger side of the steering column. If you have a tilt column, you will need to turn the schematic upside down to agree with the tilt column switch pinouts on your tilt column. There was only one vehicle wiring harness which had two connectors that plugged into the ignition switch. If you were changing from a standard to a tilt column. You would have to take the vehicle harness connectors and twist them 180 degrees in order to get them to plug into the tilt column switch.
1969 was the first year of the General Motors locking steering column. GM was very concerned that people might lock their steering wheel while driving on the road. So they designed a system called the Steering Column/Transmission Shift Interlock System. If I am correct, this is how your Camaro interlock system worked. You can always shut off your engine by rotating the ignition key from RUN to OFF. However, you cannot continue turning your key any further (in order to reach the OFF-LOCK position.) Your 1969 Camaro, 4-speed has a linkage or cable system that should connect reverse gear to the steering column. When you shift into REVERSE the collar on the steering column (next to the instrument panel) should rotate CCW. This will open a gate inside your steering column head and allow you to rotate your ignition key all the way to OFF-LOCK. This position allows you to shut off the engine, lock the steering wheel and shifter, as well as remove your ignition key from the steering column.
GM floor shift models either had the backup light switch on the shifter or transmission itself or mounted on top of the steering column jacket (down by the floor - further down the column jacket from the ignition switch.)