1939-40 Squad
| NO. | NAME | POS | HEIGHT | WEIGHT | DOB | AGE | BIRTHPLACE | PREFERRED FOOT | |
|---|---|---|---|---|---|---|---|---|---|
 | G. Ameztoy | MF | 5/15/1916 | 23 | La Carlota | ||||
| | M. Arrieta | DF | 11/22/1917 | 21 | Getxo | ||||
| | E. Arrizabalo | DF | 8/3/1910 | 29 | Deba | ||||
| | V. Bilbao | FW | 2/26/1913 | 26 | Artea | ||||
| | D. Elorriaga | FW | 4/22/1916 | 23 | Sestao | ||||
| | P. García | MF | 3/25/1911 | 28 | Logroño | ||||
| | P. Gómez | DF | 4/28/1905 | 34 | Zaragoza | ||||
| | M. Inchausti | GK | 6/3/1915 | 24 | Caibarién | ||||
| | S. Municha | MF | 5/12/1909 | 30 | Durango | ||||
| | A. Muñoz | MF | 8/4/1911 | 28 | Barcelona | ||||
| | M. Olivares | FW | 4/2/1909 | 30 | Son Servera | ||||
| | S. Ontoria | MF | 1.68 m | 71 kg | 1/20/1920 | 19 | Donostia/San Sebastián | ||
| | V. Ortúzar | MF | 10/4/1915 | 23 | Amorebieta-Etxano | ||||
| | J. Ramos | MF | 3/31/1916 | 23 | Miranda de Ebro | ||||
| | J. Ruiz | FW | 2/8/1914 | 25 | Bilbao | ||||
| | P. Ruiz | FW | 7/29/1917 | 22 | Tauste | ||||
| | U. Ruiz | DF | 10/22/1911 | 27 | Sestao | ||||
| | A. Sánchez | FW | 7/2/1914 | 25 | Oviedo | ||||
| | E. Soladrero | MF | 4/30/1913 | 26 | Arrigorriaga | ||||
| | J. Uriarte | DF | 12/15/1914 | 24 | Catubig | ||||
| | P. Villacampa | MF | 7/2/1913 | 26 | Lascellas |
