I believe that there are a few more recent white heroes, and if you want people to look forward it might not be best to focus exclusively on 150-200 years ago.

I argue heavily for Hugh Thompson, Jr. https://irasocol.medium.com/heroes-and-holidays-a6684c7e6d8a

and more controversially for Bobby Kennedy https://irasocol.medium.com/50-years-later-what-robert-kennedy-tells-us-about-changing-schools-c834a8bfdb9e

I have a home town link to Mickey Schwerner https://www.usatoday.com/story/news/nation/2014/06/20/ny-man-remembered-50-years-after-civil-rights-slayings/11203413/

And I'd like to think that there are 21st century heroes as well.