Unknown My Great great Grandfather was MN or RN

Hi Nick,
1 If his father (or mother, or guardian) signed him up as an apprentice on indentures he would have been MN. I am not aware anyone was, or could be, apprenticed to the RN? It is difficult to see his name on the indentures list, so this may be a red-herring. The dates look right as he would have been 16 at the time.
1 He was 33 in the year of the census, not that that adds much.
3. Can you identify his medals. These would tell you which campaigns he was in, which would tell you which service.
Good luck in your research,
M Jobson
R732092

Did a Google Search
Attachment 31010
Sky Lark Official No23213

SKY LARK Folkestone, Sail, 139 tons MNL, 1860

Sunderland, Sail MNL, 1870

Waterford, 1848, Sail, 139 tons Appropriation Books, RSS

Waterford MNL, 1857

https://www.crewlist.org.uk/data/ves...&submit=search

Thanks you to you all absolutely fantastic. You are deffo the experts.

Something to look at during retirement.

Still a wee bit of a Mystery this one ?
Cheers

Will try and look at all again ASAP.

Keith.