First off...how long has it been since you drove it last? Any changes? Any off the wall incidents? Stored indoors, outdoors? Last time you started car?
I would check power at coil..power at all positive and negative terminals.
Without knowing how your car is wired, it would seem the logical assumption that no power at starter is no power from switch. I had my purple wire short and caused a no start.
I had a short in my side marker lights in my 68. The ones in the quarter panel. When I accidentally shorted the socket (power from harness) to ground of the housing where socket/bulb is installed. I would first pull both side markers and pull the bulbs and see what happens. Then check voltages of side markers.
Since you don't have rear marker lights...I would check for commonality between the rear marker lights, starter and switch.
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1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.
