[Confederate Murphys in Rock Island Prison]
[from Director, Rock Island Arsenal Museum]

The following entries appear in the index to the two-volume 
general register of prisoners:

Name:                   Murphy J.D.                     
Barracks Number:        11
Register Number:        177

Name:                   Murphy John T   
Barracks Number:        33
Register Number:        390

Name:                   Murphy Joseph B                 
Barracks Number:        33
Register Number:        400

Name:                   Murphy James    
Barracks Number:        41
Register Number:        549

Name:                   Murphy Edwin T* 
Barracks Number:        54
Register Number:        700

Name:                   Murphy Thomas   
Barracks Number:        69
Register Number:        798

Name:                   Murphy Joseph H*                                
Barracks Number:        48
Register Number:        882

Name:                   Murphy John*            
Barracks Number:        48
Register Number:        924

Name:                   Murphy (illegible initial) S    
Barracks Number:        75
Register Number:        1041

Name:                   Murphy Thomas   
Barracks Number:        77
Register Number:        1179
Entry in register is mostly illegible, but you can read that he 
was a Missouri conscript.

Name:                   Murphy James    
Barracks Number:        69
Register Number:        1266
Entry in register is mostly illegible, but you can read that he 
was with an Arkasas regiment.

Unfortunately all but two of these register numbers (the last two) 
would have been in the first volume of this two-volume set.  This 
first volume did not survive.  

I checked the exchange roster next and did locate the following entry:

page 252
Register Number:        illegible
Name:                   Murphy Edwin T
Rank:                   Private
Regiment:               48 Tennessee Infantry
Company:                H
Where Captured: Columbia, Tennessee
When Captured:  September 7, 1863
Sent for Exchange:
        When:           March (illegible) 1865
        Where:  Point Lookout, Maryland

Although this doesn't exactly match the information for Cpl Edmond 
Thomas Murphey, the regiment information is identical.
I did not find an entry for Joseph Hill (James H. or J.H.) Murphey 
or for John Calvin Murphey in the exchange roster.  Portions of the 
original register are illegible, so that record is not complete.