I had another look at the whole page. There were many, many entries marked C R - just as many marked Felony, one marked Fraud and one I wasn't sure of (looked Like Go.L.J.) Most of the C R entries were Life sentences - but not all of them. The Felonies were split between 7 years, 14 years and Life.
This is already a criminal record, so not likely that the initials would stand for this (as opposed to felony, fraud etc). Too many individuals I think for it to refer to cattle robbery - but I haven't spot checked any of the other C R entries to check. Dictionary meaning of a felony is something pretty serious and yet to get a life sentence (and maybe commuted from a death sentence) C R had to be pretty serious too. I don't know back then what equivalence there was between "robbery" and "felony". I also can't imagine so many cattle thieves collected together on one hulk. The word "commuted" sort-of fits. If it were C S it could be "commuted sentence" - but it is not in the column for the sentence so it is not in context. "Capital" refers to a crime which is punishable by death. So "capital" could also be the first part of the "C R". "Capital robbery" remains a possibility if they were ALL death sentences commuted to life. (But there are so many of them in the list - and that's just one page!)
Thanks Neil. Plenty to think about.
Jennifer