David Apatoff at his Illustration Art blog has a series of posts dealing with a Smithsonian exhibit of work done by those artists, including Aylward (one of these posts is here).
I hopped over to his link to the exhibit (here), and selected some examples of Aylward's 1918 work to show below.
The St. Mihiel Salient was a longstanding German bulge on the Western Front. Its eradication was one of the more important tasks assigned to the AEF in September, 1918.
Note the peaceful French countryside in the background. It's not clear if this was land behind AEF lines before the attack or some distance north or northeast following the collapse of the salient.
One of Erich Ludendorff's 1918 offensives thrust the German army across the Marne River at Château-Thierry, a city where a battle was fought. Aylward's illustration was probably made after the Germans were pushed back.
Mont Saint Père is about four miles up the Marne from Château-Thierry, so again this was made after the failure of Ludendorff's offensive. I think it is a very nice work.