Popsugar Entertainment Halloween Downton Abbey Halloween Costume Ideas 15 Proper Downton Abbey Costumes You Can Wear This Halloween October 26, 2019 by Kelsie Gibson View On One Page Photo 4 of 15 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 Cora Crawley What to wear: Think Eliza Doolittle in My Fair Lady. A high-neck dress with a matching overcoat and a wide-brimmed hat. Previous Next Start Slideshow HalloweenDownton AbbeyHalloween CostumesHalloween Costumes 2019TVMovies