Bueye..
You should hold those memories dear... When you mentioned "walking the tongue'..that brought to mind a childhood incident.. I was walking the pole, down toward the tongue when I slipped..hit a big rusty bolt..and collected several stitches just below the left kneecap. Just a few of many...
I have a neighbor about 3-4 miles away, who writes for a magazine involving horses, oxen and etc...can't recall the name, but I'll look it up !
When my wife was about 5-6 years old, she and her friend were playing somewhat away from home. The neighbor farmer finished working his field, an offered the girls a ride home on his big work horses. When she saw the setup her mother got excited..the farmer was jogging the horses..and the girls could barely hold on. THe broad back of a Belgian or Percheron, doesn't allow much curvature for tiny legs. It was more like sitting on a table while the horses jogged. They did have the big, brass haymes to hang onto, however.
TM;
The top picture is from a horse pull. My Dad never put his horses in a horse pull..he believed they were made them too "jumpy" that way..and dangerous to the hands etc.