Bottiau was the sculptor of the two enormous figures representing France and the United States, which adorn the west face of this monument.
An enormous eagle and shield stand in front of the east face of the monument and although this has not been established to be the case, this could also be the work of Bottiau, as he worked with Cret in Philadelphia and was the sculptor of the eagle and allegorical reliefs on the Federal Reserve Bank of Philadelphia building there.
This Memorial Chapel was erected over front line trenches dug by the American Army's 2nd Division as part of the defence of Belleau Wood.
Bottiau carried out the chapel's decorative embellishments to the design of William F.Ross and Company of East Cambridge in Massachusetts.
On the capitals of the three columns on either side of the entrance to this Memorial Chapel are carvings by Bottiau which depict scenes from the trenches.
On the left hand side we have some artillery observers, a machine gun crew and soldiers launching grenades.
Bottiau also carried out eleven carvings on the capitals of the belfry columns, these representing the various units involved in the war.
On the west face the grouping is artillery rounds, bayonets, plane-table, airplane engines, cannon, propellers and tanks and on the east face the grouping covers artillery rounds, mule's head, bayonets, oak leaves, Greek cross and caduceus, cannon, propellers and tanks.
The arches of the belfry openings carry carvings of small arms ammunition, the front view of a machine gun and projectile, field packs with entrenching tools attached and selected officer and enlisted insignia.
Finally below the belfry openings are sculptured heads representing some of the men and women who served in the Allied armed forces.
The composition shows two kneeling figures representing "Grief" and "Remembrance" and on the lintel underneath are the words "IN SACRED SLEEP THEY REST".