Apart from her contributions to arts and culture via the Museo Nacional, Mejía is also known as the pioneer of a female gaze in photography in the Dominican Republic. She mainly recorded observations from her many trips using a Vest Pocket Kodak. Her photographs were published in a 1925 article for" La Opinión, Revista Semanal Ilustrada" (Year III, Vol. 15, 139 (3-IX-1925))" "in Santo Domingo, marking the first time ever in Dominican history where a woman's' photographs were published in a printed source. Throughout her life, Mejía published articles in various national and international newspapers/magazines on a range of topics including women, literature, travel, and the Dominican Republic. Mejía wrote her first and only novel, "Sueña Pilarín" (1925), in Barcelona, a novel focused on the affective relationships between women as a vehicle to solidarity. Dominican author, Virgilio Díaz Grullón, writes of "Sueña Pilarín" (translated from Spanish): It narrates with sweet and simple language, at times filled with humor, the story of a young girl from Dominican origins, but born and raised in Spain, who lives intense episodes in a tragedy-filled life that begins with her becoming an orphan, then suffering the pain of an adoption imposed on her, suffering the severity of living in a convent, battling an incestuous relationship and finally, finding love with a passionate, young Dominican man and ultimately finding the happiness life had cruelly denied her.Mejía presented various speeches and conferences. Her public entrance into the Dominican feminist movement was the presentation of her speech, "Feminismo," in Santo Domingo in 1926. She also wrote the first history of Dominican literature in 1937 which was later published in 1939. Mejía worked as a writer and director of the Museo Nacional until her death on March 15, 1941. She produced various texts and held different positions of power throughout her life, but did not live to see the legal reforms for full civil and political rights for women in the Dominican Republic.