Kammala jumla mai zuwa: "A Sunan Kakan" shi ne farkon labarin da Matt Marshall ya rubuta wanda a baya ya yi aiki a wasan kwaikwayon a matsayin mataimakin marubucin. A shekara ta 2007, ya gabatar da ra'ayin cewa an yi watsi da Grandpa kuma Simpsons sun dauke shi zuwa Ireland. Rubutun ya kasance a shirye don karatun tebur a ƙarshen 2007, amma
Yajin aikin Writers Guild of America ya jinkirta aiki a kan wannan labarin. Babban mai gabatarwa Al Jean ya ce an yi niyyar zama "wasikar soyayya mai kauna ga Ireland" saboda yawancin marubutan suna da asalin Irish. Ya kara da cewa, "Wannan labarin ya dogara ne akan kwarewar kaina da kuma yawancin marubutan "The Simpsons" waɗanda ke da asalin Irish kuma sun dawo don ziyarta don samun bambanci sosai, da fasaha mai yawa. " A cewar James L. Brooks, labarin ya kuma samo asali ne daga wani labarin "New York Times" game da tasirin haramcin shan sigari a Ireland a kan mashaya.