In "Peter Griffin: Husband, Father...Brother?", Peter took his son, Chris, to the Quahog Public Library to teach him about their family's history. There, they discover the history of Nate Griffin, a slave ancestor of the Griffins.
In "Turban Cowboy", the librarian happily counts down the seconds until books can be considered late when Peter crashes through the ceiling while skydiving with books in hand, claiming that they had "wieners" already drawn in them.
Peter and Quagmire perform their first public singing gig at the library during open mic in "In Harmony's Way".
Peter's taking up a challenge to drink from a fire hydrant results in the library being flooded in "Underage Peter".
When Peter is tipped off by Bill Maher that Family Guy will never win an Emmy in "Emmy-Winning Episode", he goes to the Quahog Library to research the matter. The building, despite the shortened name, has design elements from the earliest library.