Looking for archive of older Sunday school manuals

I remember some stories that were printed in Sunday school manuals back in the early 1970’s (71-76). I am specifically looking for a pioneer story about a family that was asked to make room in their wagon/handcart for a crate from another family by the bishop/company leader. To do so, they had to leave behind a crate of their own (holding the wife’s chinaware).
I don’t live in Utah, so I don’t have access to physical Church archives, and am looking for either the detailed story or a source of archives for old manuals (youth Sunday school).
Thanks.
-Barry