[1] To support herself as a widow, Platt opened an inn called The Manor at Albemarle Park in Asheville in 1899.

[1] In January 1928, she hosted a club benefit bridge party at her home to raise money for the women's clubhouse.

[1] Platt was a prominent socialite known for hosting balls and tea dances and was described in the Asheville Citizen-Times as "one of the most popular members of society.

[1][5] In 1920, she attended the annual state convention of the North Carolina Equal Suffrage League in Greensboro.

[1] When the Nineteenth Amendment to the United States Constitution passed, granting women the right to vote, Platt received an engraved plaque with the signature of Carrie Chapman Catt, former president of the National American Woman Suffrage Association.

[1] Platt was engaged in public affairs, presenting speeches and hosting fundraising campaigns in support of women's suffrage.