Unnamed First Rider

One of the many people who gather on the Old Frenchman's place in "Lizards in Jamshy'd Courtyard" to watch Henry Armstid digging for treasure is distinguished from the group as "the first rider" (137). That is an unusual locution, but may just mean that he was riding by on a mule - or less likely, a horse - when he became the first person to stop to watch Armstid. He is chased away by Armstid, and then, presumably, spreads the word about what Armstid is doing.