Polycarpe Bilbao was born on 18 Apr 1902 in Erandio, Vizkaya, Spain.
Notes:
Birth:
His parents were Francisco Bilbao Inchaurtietaand Bernarda Zubiaga Ansoleaga, who were married on 5/7/1898 in Urduliz, Vizkaya.
Source: https://internet.aheb-beha.org/paginas/indexacion/n_ficha_matrimonios.php?id_matrimonio=296282