Not Mortgage Lifter and not Cherokee Chocolate as you already know.
Rather than guessing in the dark, what other varieties are you growing that might match up with what you show.
Or were these your own saved seeds b'c you asked about a cross, or were they purchased seeds.
A bit of help on your end sure would help.
Yes, I could name some possibilities for both, but if the aren't even possible, well, then they aren't even possible.