[1] The daughter of Pedro Daniel Gallagher Robertson-Gibbs and Mercedes Ortíz de Villate y Laurent, she was born in Lima in 1883 and received a private education.
She possessed an important collection of colonial Peruvian statues of Piedra de Huamanga [es], a type of alabaster.
[5] She was an important benefactor in the construction of the St. Philip the Apostle Parish church in San Isidro District, Lima, and of a clinic for impoverished mothers.
She received the cross Pro Ecclesia et Pontifice from the Catholic Church for her work.
There is a street in Lima named "Mercedes Gallagher de Parks" in her honor.