For the most part, I am unable to identify the people in the photograph.  For the view that I have been able to identify, I have annotated them directly on the photo.  The exception is that I recognize Ralph Nichols' wife Elizabeth Lett.  The young boy on Elizabeth's lap and the young girl on Ralph's lap are their grandchildren.

This is a large photograph, and the browser is displaying it at 1/4 of its true size so that it will fit on the screen.  The browser can be used to display the photograph at its true size and with good resolution, but if so it will not all fit on the screen at the same time.