I have purchased and viewed the Naval record for Hollingsworth. hers what we learn...
Name: Robert Thomas Hollingsworth.
DOB: 23 May 1864 St,Giles, Middx.
Height: 5 feet 5/10
Hair: Lt brown
Eyes: Lt brown
Complexion: Fair
Trade: Printer
'Date & period of C.S. Engagement': 23-5-1882 10 years *
Rank : Boy 2nd Class.
Ships served in:
'Boscawen' 28-11-1879 to 31-3-1881 **
'Impregnable' 1-4-1881 to ?
'Impregnable' 15-6-1881 to 20-7-1881 ***
behaviour on Impregnable was bad and though the notes are difficult to determine, it shows he was sent to shore and Bodmin Gaol (which I searched and was used as a naval prison in Cornwall). I'm still reviewing the details.
* this is the date he'd turn 18 and become a navy sailor (pensions date etc).
** Navy training ship, located Portland, Dorset in 1879
*** Navy training ship, located Devonport-Plymouth, Devon in 1881.