How to get the full path of an image viewed in the default Gallery App on the Samsung Galaxy?
I was able to figure out how to get to the path by this message and steps provided by beeshyams.

The menu button on the Samsung Galaxys is the hardware Return Key.

The problem is that, there isn't an onscreen menu for the recent Samsung Galaxy androids.  I was stuck on the 3 dot menu step.

The Samsung Galaxy has a hidden hardware menu.  Pressing and holding the Return Button activate the menu feature.

While having an image in view, press and hold the Return Button, this bring up a menu that include the Details option.  Clicking on Details brings up a lot of information on the image, including a map marked where it was taken.  It also shows a properties block that includes the path of the image.