So in this spreadsheet, I wrote their names, the velocities of the pitches they threw/were tweeted about, the school they are at or are committed to, what year they are eligible for the draft, and what hand they throw with. I don't have all the info on all of them, but at least we have something.
As far as "source" goes:
"Rogers" is Kendall Rogers
"Glass" is Conor Glassey
"Gold" is Todd Gold
(Kendall Rogers is basically a really awesome follow)
You can either just view the pictures by clicking on them, save them by right clicking on them, or contact me on here in the comments/on twitter (@clinthulsey)/or via email (firstname.lastname@example.org) and I will send you the spreadsheet itself (I upload screenshots of the spreadsheet because it is easier with Blogger).