Till was brutally murdered by Donham's husband at the time, Roy Bryant and his brother-in-law J. W. Milam. The two were found not guilty by a Tallahatchee County, Mississippi jury but later sold the story of how they murdered Till to Look magazine for $4,000.
Donham has refused interviews and has not talked about Emmett Till since the trial until she consented to a 2007 interview with author Timothy Tyson for his book, The Blood of Emmett Till, which was published earlier this month.
Among those calling for the investigation to be reopened is Congressman Bennie Thompson, D-Mississippi.
The following message was posted on his Facebook page Friday:
Today, I wrote to the U.S Department of Justice. Asking for a formal investigation in regards to Carolyn Bryant Donham's false testimony during the trial of Emmett Louise Till's murderers. Please see my letter below.