who/what is jc, ll, ps, and lp?

i know ll is loretta lynch, jc is jefferson (bill) clinton.

302

https://www.law.cornell.edu/uscode/text/36/302

https://www.law.cornell.edu/uscode/text/35/302

https://www.law.cornell.edu/uscode/text/26/302

https://www.law.cornell.edu/uscode/text/31/302

https://www.law.cornell.edu/uscode/text/5/302

https://codes.findlaw.com/us/title-42-the-public-health-and-welfare/42-usc-sect-302.html