Update. I first posted this list in 2013, after the fifth letter, and haven't seen any new letters since then. It might be time for a new one, especially one supporting #OpenLicenses and #ReuseRights on work arising from federally funded research.

After I posted the list of five in 2013, Tom Morris created a Google spreadsheet merging and deduping the lists, with links to Wikipedia and the original letters. I'm glad to say that it's still online.
https://docs.google.com/spreadsheets/d/1BbOV4Hph3FM-TiCNc-8GYw8VJiEaPvbEAsFCF5otc3A/edit?gid=1#gid=1

Nobel Laureates who support Open Access

Google Docs

I just spoke live on the #NIH Listening Session.
https://osp.od.nih.gov/events/virtual-listening-session-on-the-nih-public-access-plan/

All speakers were responding to the NIH #RFI on strengthening its #OpenAccess policy.
https://osp.od.nih.gov/nih-plan-to-enhance-public-access-to-the-results-of-nih-supported-research/

I thanked NIH for planning to implement #RightsRetention and #ReuseRights, and argued for better ways to do that than the way outlined in its current enhancement plan (§III.C.1).
https://grants.nih.gov/grants/guide/notice-files/NOT-OD-23-091.html

The recording should be online soon.