The purple magazine that Gillian peruses is the March 1920 issue of Photoplay. Actress Alice Joyce is the cover model about whom Gillian asks Angela, "Do you think she's pretty?" A readers poll in Ladies' World Magazine in 1915 (five years prior to this episode's events), Alice Joyce came in as second most popular film actress, after Mary Pickford.
The episode title, "Nights in Ballygram," is taken from the lyric of the song "Carrickfergus,"
During Elias' speech at the Celtic Dinner, he argues that St. Patrick shouldn't have driven the snakes out, but the English. St. Patrick was, in fact, born and raised in, what is now, Cumbria, England.