I found a notebook containing a few short thoughts from Josh that I was obviously meant to find after his passing. 

One page listed the things he wanted to do and see, which I will make sure I do.

The second page is the reason for this fund.  

In all our talks about what to do after he passed, he had never spoken about a memorial gift.  Instead, he wrote to me about how much he wanted a memorial bench in the San Diego Safari Park.  

I want to try to honor this wish. 

The goal of this campaign is the amount it will take to see his final wish manifested.

The final page was this poem:
I know you are sad 
I'm sad too 
I wanted a much longer life
I love you.

He always had to have the final word, and I am eternally grateful that he got to have it.