The never-realized film titled "Whispers Like Thunder", a project by Ben Kingsley, was supposed to tell the story of which Native American woman?

"Whispers Like Thunder" was supposed to tell the story of Eliza "Lyda" Burton Conley of the Wyandot Nation. In 1907, she filed a case to prevent the U.S. government from selling and developing the Huron Indian Cemetery in Kansas City, on the grounds that this project violated treaty protections and her family's burial rights.

In 1910, she personally presented the case before the U.S. Supreme Court as the first Native American woman to do so, but the Court ruled against her and upheld the government's authority to proceed. Nevertheless, she gained significant public and political support, and in 1916, Congress ultimately passed legislation to protect the cemetery from sale and development.

https://wikibin.org/articles/whispers-like-thunder.html

https://en.wikipedia.org/wiki/Lyda_Conley