The follow-up explicitly notes that the word-processed version shown in the original article is a modern update; a typewritten version that is supposedly closer to the original is shown at the bottom of that article (and available at https://web.archive.org/web/20160615084237/http://msmcdushis...), although the provenance of this version is also unclear ("McDonald reports that she received the test, along with another literacy test from Alabama, from a fellow teacher, who had been using them in the classroom for years but didn’t remember where they came from.")
The follow-up, in which the author chronicles their (unsuccessful) search for an original: https://slate.com/human-interest/2013/07/louisiana-literacy-....
The follow-up explicitly notes that the word-processed version shown in the original article is a modern update; a typewritten version that is supposedly closer to the original is shown at the bottom of that article (and available at https://web.archive.org/web/20160615084237/http://msmcdushis...), although the provenance of this version is also unclear ("McDonald reports that she received the test, along with another literacy test from Alabama, from a fellow teacher, who had been using them in the classroom for years but didn’t remember where they came from.")