A lesbian who sued her school district in 2010 after she was left out of the high school yearbook for wearing a tuxedo is demanding the Mississippi Agriculture and Forestry Museum permit a commitment ceremony for her and her partner.

The Southern Poverty Law Center sent a letter on her behalf to the museum Thursday threatening to file suit if the museum doesn't permit Ceara Sturgis and her partner to hold the ceremony there.

The state-owned museum in Jackson refused to permit a similar ceremony for two men earlier this year.

The museum has said it interprets commitment ceremonies to represent a union, and cites a 2009 opinion by Attorney General Jim Hood that said it could decline such ceremonies because same-sex
marriage is banned in Mississippi.