Mix Station: More likely Mix station. Could have simply been as little as a flag stop. Or even a dirt road crossing of the tracks, by a farm named for the Mix family. Hard to say. Back then, trains passed many named locations which faded away, or were assimilated by another growing community. Second train: Likely a second section of the scheduled Number 29. Would been seen on train orders as something such as "engine XXX display green flags run as second section number 29". In other words, the XXX would have been on the same schedule, but had to observe a specific following (time) distance (safety!) behind the first train. Speeder: Hard to say what it might have been. Unless there is by some odd coincidence a photo, from which a guess could be made.... The locomotive pilot probably tossed him and his speeder clear, before both could be otherwise struck so as to cause more trauma to his body. Just the G forces of the initial impact could have been enough to end his life, before he impacted anywhere else trackside. And, what he was doing, riding that speeder, was an offense which he could have been easily/quickly fired if he'd been caught. Just for the reasons of preventing such an accident. When a speeder is operating, legally, a track car operator's lineup should have been issued, via station operators in his vicinity, to know the speeder was going to be present, where, how long. The track car operator would have been given that lineup, showing trains to be coming through his work area, and required to safely clear them as they passed. Depending upon the situation, the trains could also have been issued orders preventing or drastically slowing their movement through that territory. Why hire him? Labor laws and railroad practices back then were much, much different. Sixteen was not an unusual age. He may have been apprenticing under an experienced adult, to learn his telegraphy, starting a year or two, or even more prior to turning sixteen. In my favorite aspect of the railroading hobbies, I have known several folks who bid in their first telegraph operator's job at sixteen. And they apprenticed just as I noted. BTW- their apprenticing was done just as if they were an employee. But they were not. Completely unpaid as they learned, with the end hope they would be hired, yet expected to perform with the responsibilities associated of a real employee!