I did find some information on a couple of my grandmother's sisters who were also born in Buenos Aires province. The most help I received came from Michael M. Miller from the (GRHC) "Germans from Russia heritage collection" society based out of North Dakota, USA. He gave me a couple of contacts in Argentina who were able to do some limited research on my grandmother's family, and came across two of her sisters birth certificates. They were unable to find information on my grandmother or her other siblings born in Buenos Aires province. I tried e-mailing different government departments, and received a reply from the Buenos Aires Provincial registry department. The lady who e-mailed gave me some local addresses to write too in Coronel Suarez. Local government civil registration offices. I haven't wrote yet, but she did say they don't receive or reply to e-mails.