Public Domain Sound Library Volume Six

Over 250 public domain sounds curated from freesound, the Internet Archive, and Citizen DJ.

A grab bag of random sounds, could serve as a building block for your music or incidental sounds in a video.

All sound info is in each cue point of the main file. Cues that do not have info are part of the group indicated before them (this happens 3 times).
To extract all the sounds, use a sound editor like Goldwave to break it up by the cue points.

Since these are public domain, you are not required to give credit for any of the sounds (including this collection). For the sounds curated from freesound, you can thank the artist and/or tell them where you used it by copying and pasting the file number into freesound's search field and it will help you find the file page.

Important:
If you intend to register a copyright with the government for works you created using public domain sounds, you must indicate them in the application process (limit of claims section) because you cannot copyright public domain sounds.