The current Skeirs II converts both Latin and Gothic letters to the Gothic font it has. This causes the Gothic wikipedia to display all Latin text in Gothic script too.
I asked mr. Pfeffer to solve this and http://robert-pfeffer.net/schriftarten/englisch/nachgeladener_rahmen.html?skeirs.html now includes a Skeirs font which displays correctly. I tested it on http://webfont-test.com/ and the Latin indeed doesn't seem to be converted anymore. Please, replace the Skeirs II font with the current version on his website.