Michael -

My wife is a dedicated researcher of her own family's history, and has a very complete picture going back to the 1600s, so she has taken on the task of getting mine together. While we are able to make good progress on the maternal side, very little is known on the paternal side because my father and his parents all passed away many years ago, and my aunt is somewhat...free-spirited...and difficult to extract information from.

What I do know is this -- thanks to my mother who knew a bit about my father's family:

My maternal grandmother's name was Maria Josepha Mir Rodriguez (Pepa we called her).
She was born c. 1910 and grew up on a ranch in Holguin.
She married Mario Oscar Gutierrez (maternal surname unknown) and they lived in Holguin.
Her children were Mario Hermes Gutierrez Mir (my father) and Nancy (my free-spirited aunt).
Her grandmother (my great great grandmother) was a French woman of noble birth (my mother says she always looked very haughty in pictures :-) ).

This French woman who married Luis Mir seems to jibe perfectly with the little my mother knows and seems an unlikely coincidence! I am hoping you may be able to shed additional light -- anything at all that may help us would be greatly appreciated. Maybe you know the names of Louis Mir's children? Any Mir boys marry someone named Rodriguez? That would help us work on the connection...