jaggers on Family Tree Circles

I live in Trinidad, in the West Indies. My maternal grandfather was born in Lyon, France. His name was Charles Joseph BOUCARUT. I understand that he had at least two brothers and one sister. My grandfather would have been born about 1879 in Lyon but moved to Martinique in the West Indies as a small boy with his family. His father's name was (I believe) was Leon Charles BOUCARUT. I do not know his mother's name. One of my mother's elder brothers visited the family in Lyon some time in the 1960s. He was a professional musician - he played the double bass. My grandfather's brothers were in the French Navy and both visited Trinidad whilst in the navy. I would really like to learn a little about my grandfather's relatives and possibly communicate with them before I get much oder. jaggers