When Jesus healed the ten lepers as recorded in Luke 17, how many of them returned to give thanks, and of what nationality was he?

Luke 17:15-16 records that only one of the ten healed lepers returned to glorify God and thank Jesus, and he was a Samaritan. Jesus used this incident to highlight the ingratitude of the nine, presumably Jews, and to commend the faith of the foreigner. This episode is consistent with Luke's theme of Samaritans responding positively to Jesus while others fail to do so.