Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

Here is something that John McAdams may be right about, and at first glance, he seems to be right. He says that the Croft photo corresponds to Z161.
Notice in Croft that JFK is not waving at that moment, and Jackie has her head turned severely to her left.

Here's Z161.

You can see that JFK is not waving and Jackie has her head turned all the way to her left. So, that matches very well, and he definitely doesn't look shot there. He looks relaxed. 

I found this article about Croft which includes statements by him. He said his picture is from before JFK got hit. 

https://missoulian.com/news/state-and-regional/wyoming-man-snapped-photos-of-kennedy-assassination/article_131514d6-5567-11e3-b380-001a4bcf887a.html

So, I think we should assume: no hit at Croft.