I don't know if this is of any help - however, I had a look for your chaps through both the Owen BSACM Roll and the CD of the compilation by Roberts Publications.
All three are shown on the Owen roll as being entitled to the 1890 medal (John Phillip BORRIUS, Frank MANDY and Richard NICHOLSON). However, the Roberts Publications does not show J.P.Borrius as actually having had the medal issued, nor does it show Lt. F.Mandy as having his medal issued. However, it does show Lt. R.G.Nicholson as having an 1890 medal issued.
I assume that these compilers at some time had access to the original rolls.