One of the founding members of the Feminist Association, she served as a leader for many of the organizations committees and events, arguing for gender equality, as well as women's suffrage.

After being privately educated in music and languages, Miskolczy married Artúr Meller, an inspector at the National Bank of Hungary in 1896.

In 1913, Meller authored a critique of the Hungarian Civil Code's marriage regulations, while simultaneously serving as a member of the committee responsible for the preparations for the International Woman Suffrage Alliance (IWSA) congress held in Budapest that year.

The stance resulted in censorship of Woman and prevention by authorities of the 1916 Feminist Congress, which Meller had planned to use as a public demonstration against the war.

[6] She also pressed for educational opportunities for women and in 1923, sent a memorandum to the government, signed by other FE members as well, denouncing the Budapest Medical University's decision to bar female students from enrollment.

[11] During the interwar period, Meller, who spoke fluent English and French, was employed by the Társadalmi Múzeum, the social museum of Budapest, as well as a language instructor.

A credit application by her dated 13 August 1945, which was not authenticated because it did not bear Meller's signature, was submitted to the municipal authorities of Budapest to reconstruct a property her husband had owned.

[10] In December 1946, the Magyar Közlöny carried a notice that Meller had been posthumously awarded the silver honorarium of the Hungarian Order of Freedom.