The episode title is a reference to "Love Child", released in 1968 by Diana Ross and The Supremes. The song is most notable for its then-controversial subject matter of illegitimacy.
Donal Logue (Sean Finnerty) actually does have a "Kasey" tattoo. Kasey is Logue's real-life wife.
Kevin Corrigan (Eddie) and Elizabeth Berridge (Amy) are real-life husband and wife.