Rain for the Earth

PD short film, documentary
–Year: 1937
–Year in film: 1930s
–Country: USA
–Who in bibs: boys ~5, 10, 12?, men
–Available on DVD: no ?
–I own: no
–Clothing occurrence: medium-
–Rating:  3/10
–Rating: ***
–Comment: One boy in dark bibs as pictured in pic 2 and another, much younger boy sitting. I previously missed a boy and man at the very end (pic 1) brief scene.

From the Prelinger archives. 8 minutes. On archive.org there's this and another 10 minutes film of the same name (part I), on YouTube called "Dust Bowl: Rain For the Earth", with obviously same people (and a young, barefooted boy standing. So there must be an even longer version (at least 14 minutes). Maybe part 2 has a different title?

For now the last movie from the USA National Archives and similar series, I recently found. No entry on IMDb.