"We had to narrow them down, because there are so many potential stories to tell about Whanganui."
Each episode is 30 to 40 minutes long and includes a narration by either Ms Alexander or Mr Wilson, followed by interviews with historians and family members of those involved in the original events.
A highlight for the pair was visiting the site of the former Aramoho Zoo - believed to be the first provincial zoo in the world, which had lions, leopards, polar bears and many other animals - to discover remnants of the zoo still remain. The site is now part of a residential area.
Ms Alexander said she was pleased to be able to keep some of the lesser-known stories alive, although she admits there are still mysteries that are yet to be explained about some of the stories.
Mr Wilson said he was surprised by people's willingness to talk openly about what was, in some cases, personal family history.
He said researching, writing and producing the podcast helped him understand Whanganui better, and where the city had come from.
"Whanganui was a crazy place - maybe it still is."
The pair began working on the podcast in March, and tried to keep as much of the production as local as possible. The website and graphic design was done in Whanganui; the podcasts were recorded in Whanganui; and the music was provided by Whanganui band Castlecliff Lights.
They received funding from the Whanganui Creative Communities scheme. They are already planning a second series.
The first episode of the podcast was released on Thursday, and the remaining five episodes will be released on consecutive Thursdays. For more information, visit http://revisitedpodcast.org. Or search for Revisted on iTunes or Soundcloud.