The legend started in 1938 when Southern California had 14 days of rain causing sever flooding. Here is part of the article from the Santa Ana Register (now the OC Register):
Corona, CA — AP
As the flood waters subside from 2 week of flooding, 13 coffins were discovered in the wooded area next to River Rd and Archibald Ave in the city of Corona. “The coffins are believed to from the abandoned Guasti Cemetery in the city Ontario” said Officer Willmans. Officer Willmans went on to say “The coffins were found by some locals floating in a small creek that runs through the woods. The authority’s and locals started referring to this area as Coffin Creek.
The authority’s continue to search the woods for the remains of the 13 coffins. Only 2 coffins had the remains found nearby. The remains of 2 other empty coffins were found in the woods, some 30 yards to the west of what is now called Coffin Creek.
As the sun rose, Officer Willmans said ” We had to stop searching last night, those woods got really creepy after dark. I called off the search when I started seeing and hearings things, strange things, like (continued on page 3 see Coffin Creek)
This is all of the article I could find, page 3 was missing. Now it’s up to you to find out what is haunting the woods.