Who was the "Frederick Ayers" that General Patton wrote many letters to during World War 2?

It was these letters from which came a number of Patton's famous quotes.

I realize that the name of his wife's father/his father in law was Frederick Ayer, however, he died many years prior to the writing of these letters, so even while taking into consideration Patton's excentric and unique psyche, it seems fairly obvious to me that his dead father in law was not the intended recipient.

I can't seem to find any information regarding this. I discovered that His father in law, Frederick Ayer, had a nephew who's name was also Frederick Ayer, so I suppose it's possible that it could have been him who these letters were written to, but I can't find any information suggesting that this particular Frederick Ayer even associated with General Patton.

Also, another problem is the fact that the Frederick who these letters were written to was credited with the surname, Ayer"S", with an "S" on the end, while his father in law's surname was Ayer, without the "S", so unless this was just a simple misspelling by the author of the source (Wikiquote), this presents another problem.

Given the limited information I've been able to acquire thus far, I suppose that Frederick Ayer, the nephew, would be the most logical choice, but some type of a confirmation would be nice.

Any help would be appreciated

Thanks

Steve