From the above article, we know William's middle name—MacDowell—and that he owned a historic piece of property. A post on the Lecompton Historical Society's website gives us a look at this property that William Jr. owned:
Fort Titus, home of pro-slavery leader Henry Titus, has been called the "Birthplace of the Civil War." Pictures of the replica of the Fort Titus cabin (the original was burned by the free-staters) are posted here and here and here; from them, we can get a glimpse of the land where William later had his distillery.
This article provides us with information about Nace ancestors' military service: the first John C. Nace was a captain in the Revolutionary War; William Sr. fought in the War of 1812.
And William Jr. himself was involved in the Civil War. Unlike his brother John C., who was in the 22nd Virginia, William fought for the North. (You can find info about Price's Raid here.)
I wonder what William's family back in Virginia thought about his Union sympathies.