These threads are better than an episode of Monty Python!
Oakley addresses the letter to one person, Hugh Wilson.
He tells Hugh Wilson that Macdonald is complimentary of "your work at Merion". Seems simple enough, on the face of it...hmmm...must be a trick.
He does not say "the work of your committee at Merion"
But even if he did...
Even if he meant it collectively...
What "work" could Macdonald be possibly referring to that Wilson and the Commitee had been doing.
It's April, 1911...the Board has just now decided on a final routing and gives the go ahead to begin construction.
What could Macdonald be saying? Hmmmmm................
Oh wait, I know!
He's saying, "You Hugh Wilson, (or You Hugh WIlson and your committee) have been doing a bang-up job turning over cornstalks and shovelling shit at Merion! Nice job, laddie...a splendid effort and I'm deeply enthused!! "
See, you can figure these things out without lawyers! Who knew?!