Hoping to trace 2/Lt P R Hamilton, 32nd (Hull) Divisional Ammunition Column

[Manipled Mutineer]

I wonder if anyone with expertise on the 32nd DAC could help me with an identification? I am trying to trace a Second Lieutenant P R Hamilton, who is cited in the DAC War Diary and Hull Daily Mail as having been awarded the Military Cross at Messines. I am researching another man, Bombardier Herbert Hornby, who was awarded the Military Medal in the same action. I was hoping to access 2/Lt Hamilton's file amongst the officers' records at Kew to see if there was more detail about the action. However, I can't seem to find him via Discovery based on his initials, and my searches of the Gazette seem to be drawing a blank also. Does anyone have a first name and middle name for this officer?

Many thanks.