From the SANFL Website we read the following on the South Adelaide history page,
South is the second oldest football club in South Australia.
http://www.sanfl.com.au/clubs/south_adelaide/
On Wikepedia however the following information is found,
The Port Adelaide Magpies Football Club - "the Magpies" - was founded in 1997 to replace the original Port Adelaide Football Club
http://en.wikipedia.org/wiki/Port_Adelaide_Magpies
So which website is correct? Is South Adelaide the oldest club in the SANFL or is Port Adelaide the oldest club in the SANFL?