My Great great grandfather was a James Joseph Callan. Born 1833 in county Louth, Ireland. He immigrated with his parents. Went to Georgetown University. He apparently joined the army and went out west to Texas. He was a colonel in the CSA. Later(or maybe before?) he was an Indian fighter and Texas Ranger out of Ft. McKavett, TX. He died in 1917 and burried in Menard, TX.