I saw these in an old garden in East Anglia, UK. The garden was unmanaged and had become dominated by scattered scrub / woodland. The canopy had closed in and the understory, which included these, appeared sparse mosses and some nettles etc. I have a couple of thoughts on what they may be, but was looking for some ideas.
I have since had some help from another forum and we all agree on the Forget - Me- Nots. It seems that the other photo is Bluebell (Hyacinthoides non-scripta). Even though I don't think you have these in the states looks like you were pretty close!