Of the cars shown, neither is a 70 1/2 Falcon, close but no cigar. The 1st car is a 70 Fairlane 2dr hardtop ( 70 1/2 Falcon 2dr & 4dr were window post sedans only, plus a 4dr wagon). The 2nd is a 70 Torino Cobra. The 70 1/2 Falcon had the same engine options as the Fairlane Torino but no hardtop or convertible model.
If your Falcon is a 4 door or wagon the Fairlane/Torino doors will interchange but if it is a 2 door only the doors from another Falcon will work. As for the Maverick and Falcon, there were no 69 1/2 models and either of those were almost narrow enough to be driven through the 70 1/2 Falcon 2 door, side to side. The 70 1/2 Falcon was almost 2 feet longer, a foot wider, and had engine options up to and including the 429CJ.