Larry K. continues to generously share material with me, and he provided today's piggyback themed series, starting with these World War I British soldiers ferrying men to a boat on their backs.
From this point forward in the series Larry provides the captions with a few notes from me.
(Yes, I've used this photo before, but it fits perfectly here, so enjoy it again.)
Viewer alert! There's a great movie clip at the end of the series.