Pilar Nicasia was born in 1895 in Valdearcos (Valladolid). Pilar Nicasia's father was Blas Aparicio (Aguado) and her mother was Buenaventura (Aguado). She was the oldest of two children. She had a brother named Eloy. She died, at the age of 56, in 1951 in Cuevas de Provanco (Segovia).
Felix and Pilar Nicasia were married (further details are not known).
They had two sons and five daughters, named Ángel, Julia, Saturnina, Aurea, Blas, Felipa and Carmen.