100 Year Old Mystery Photo (sources)
- "Trading places: Classic images of Old Belfast workers going about their by-gone business," by Mark McCreary, article in the BelfastLive website, posted 4-30-2016, viewed 6-30-2016. Online at: http://www.belfastlive.co.uk/news/history/trading-places-classic-images-old-11265423
- "Ghostly object hiding in this photo will REALLY creep you out," by Mark McCreary, article in the BelfastLive website, posted 5-24-2016, viewed 6-30-2016. Online at: http://www.belfastlive.co.uk/news/history/ghostly-object-hiding-photo-really-11380530
- "Historical Geography. 1900. Ireland. Girls whose nimble finger...", page in the Getty Images website, posted 11-4-2015 [as determined by Tineye.com], viewed 6-30-2016. Online at: http://www.gettyimages.com/pictures/historical-geography-1900-ireland-here-are-some-happy-news-photo-498875487