” . . . Delaware is notable for being the only slave state from which no Confederate regiments or militia groups were assembled.”
You probably intended to say Delaware is notable for being the only Southern state from which no Confederate regiments or militia groups were assembled. If memory serves, you contend Delaware is a Southern state.
Here's what I intended to quote from this source:
jeffersondem: "If memory serves, you contend Delaware is a Southern state."
Delaware was one of four Border South states (Delaware, Maryland, Kentucky, Missouri) -- slave states which never voted to secede.
Those Border States did also provide troops for the Confederacy, on the order of three Union to one Confederate. But of the four, Delaware had the fewest slaves in 1860 and provided fewer troops for the Confederacy, both in numbers and percent compared to Union troops.