I read your e-mail and I wanted to respond since I have some insight into my family tree which appears to be relevant to your family tree. My great grandfather from my grandfathers side of the family was Claudio Garcell. Claudio Garcell married Amparo Montero and my grandfather came from that marriage. However, I do not have information on my great grandfather's sibblings and it appears that Luis Mir Garcell might have been one of his sibblings. My grandfather was born in Sagua de Tanamo, Oriente, Cuba. Hope this helps, I am trying to research more into past generations, let me know if you have some other insight.