The Twin Sons of Buck Fryman — Kenneth E. Ingle

Buck Fryman's twin sons, Dalton and Roman, along with Tommy Simms, Jr. set out to sow their wild oats before settling down to a life as royals. But matters don't always work out as planned. Trouble seems to precede them. finally, on a mining asteroid, Tommy offers a solution to a problem the Federation has never solved. Trials and trouble precede Dalton and Roman's efforts to make their mark.