Yes, the side rear marker light on the '68 was square, located immediately above the bumper wrap. The round one shown here was either aftermarket, or cannibalized from a Mopar.
I know the '67 Ford. I had my driver license for ≈15 minutes, and was hit by one. A technical hit-and-run.
Thirty minutes at the Burbank Police Department perusing school yearbooks, and I identified the culprit.

Thanks again for such a great photo. Its interesting to note how such an innocent thing as taking a picture can freeze that moment in time and preserve it for generations to come. The full size ford here is definitely a 67 model. The fastback design is somewhat rarer today over the notchback models that are commonly found on the classic car market. Im willing to bet this is a base model due to the styled wheel covers and as noted, the lack of the engine insignia on the lower fenders. Can you imagine driving this 4000 lb lead sled with a limp wristed "Mileage Maker" six?! On a side note, i was in medford this past weekend and couldnt help but feel nostalgic thinking about rizzman's 'time capsules'. Cant wait for the book to come out...

I like the moist, early morning dew fogging up the car windows which will have to be wiped before driving off. It also looks like the flowers have stopped blooming, maybe there was a light frost, the house next door has already covered its upstairs window a/c and the light within means somebody is already up, maybe getting ready for work. You must know you are a very gifted photographer Rizzman1953, because Shorpy fans have continually praised you. You're good enough, you're smart enough and doggone it, people like you.

Lack of engine displacement badge (390, 427 or 428) in the fender area behind the front wheel indicates a bread and butter 289 or even a 240 six. Dull!

For '67, the Galaxie 500 name was in block letters on the rear fenders; the '68s had script letters in the same location. The '68s also dropped the stamped aluminum molding from the location shown here to the rocker panels.

Please publish every photo you've ever taken, Rizzman! I haven't seen a bad one yet.

You've got "the eye."

Available light photography using a street lamp (probably mercury vapor). 4x5 sheet film in a view camera; what lens? Guessing 120mm, F/16. Luna Pro for exposure guidance. Given that it's sheet film, you no doubt developed it yourself. Plus it's 35 years old and showing no signs of under- or over-fixing.

Near-zero grain, near-perfect focus (I'd call it "perfect" if I knew exactly what you used to focus on). Depth of field not quite believable, even the windows in the back fairly crisp considering. Tones reproduced -- Rizzman, you ain't a photographer. You're a wizard who turned out to be interested in photography between hobbit-rescues.

Maybe a '66.

I think that may be a '68. Neither the '66s or '69s had that quasi-fastback look, and I think the angle of the rear panel by the tail lights is more pronounced on the '67s.

I like how the porch roof's shadow mirrors the car's roofline.

The car is a '67 Ford. The rear side marker light is a red herring -- they became mandatory in 1968, but people would add them to their older cars to look cool, like people would add rear window stop lights and fake cell phone antennas in the eighties (or fake Buick portholes today.)