Hi Angie,
Yes! I can tell you my complete name is Angeles Fern�ndez Ram�rez.
My father's last name is Fern�ndez.
My mother's last name is Ram�rez.
So, we take, first, our father's last name and second, our mother's last name.
And... When we get married, our names are the same. So, I got married 12 years ago and my complete name (and "last names") are the same I had before getting married.
Oh, yes, Vda. means "viudad", that is "widow".
So, Gabriela Acevedo, Vda. de Elizondo, as Elizondo is the last name of his husband.