ELOY ALERS ALERS / AGUADA, PUERTO RICO

[Kelger]

Hello all,
I am looking for further information on the parents of my great-grandfather Eloy Alers Alers. He was born in Aguada, PR circa 1885. I know his parents were Juaquin Alers Duprey (b. circa 1850 - d. circa 1920) and Antonia Alers Servera (Cervera) (b. circa 1851 - 1941) and they had 7-9 children.  This is where the trail goes cold. From family stories, we believe that either Eloy, his father or both, worked in Santo Domingo. I have a passport application for Eloy and his wife returning to Puerto Rico from DR that seems to confirm the stories. I do not know how to proceed as the files are most likely in Spanish records because the American records did not start until 1898/1899.
Can anyone tell me where to look from this point?  Any help would be much appreciated.

Regards,
Kelger

[*Sandra*]

WW1 Draft - https://familysearch.org/ark:/61903/3:1:33SQ-GYYZ-3Y3P?i=99&cc=1968530

Resides Aguada, Puerto Rico. 26 October 1918

Sandra

[Kelger]

Thank you Sandra.

[*Sandra*]

1920 Census - Antonia Alers Y Servera De Duprey - aged 66 years - widowed - Guayabo, Aguada, Puerto Rico

https://familysearch.org/ark:/61903/1:1:X977-RZJ

Sandra

[*Sandra*]

1910 Census Antonia Alers Y Cervera - aged 55 years - single  - Guayabo, Aguada, Puerto Rico

https://familysearch.org/ark:/61903/1:1:VWKF-Y1V

Sandra