The family and baby pictures in Greer's folder about Grace are Carrie Preston's own.
Anance (or Ananke), the name listed on the cargo bill, refers to the Greek primeval goddess (Protogenos) of inevitability, compulsion and necessity. In a famous quote, MIT mathematician and computer scientist Norbert Wiener made Ananke the personification of scientific determinism.
The funeral scene was filmed in Little Italy, at the original St. Patrick's Old Cathedral.
Finch used another bird alias, Harold Martin, when he was with Grace.
Grace sees a flyer about Detective James Stills who has been missing since September 22, 2011; this is the date of the pilot episode of "Person of Interest." In that episode, Reese kills Stills with Fusco's gun, and then makes Fusco bury him at the location he had intended to bury Reese.