Yes basic is the key to this one here. I understand she had access to the archives for this, the majority of the rest of her photos came from a husband? or some other family member. My work consists of all of my pieces, a few that were included in the Payton work, many that are not. As you would guess, size is a consideration when writing. Each page means more $$ to put up at the start. A book could be written about each location in the park, so there always have to be places that are condensed.