rainbow division - Robuta Search

https://www.mentalfloss.com/history/world-war-i/wwi-centennial-first-passchendaele-rainbow-division-crosses-atlantic

Erik Sass is covering the events of the war exactly 100 years after they happened. This is the 290th installment in the series.

https://www.gutenberg.org/ebooks/33119

Free kindle book and epub digitized and proofread by volunteers.

https://www.army.mil/article/200782/rainbow_division_soldiers_get_ready_for_war_in_the_winter_of_1918

As February 1918 began the National Guardsmen of 26 states who made up the Army's 42nd Infantry