Please see the first answer from 6dmndUwtBJW8.

There is an email archived from the County of Maui under https://osmlab.github.io/editor-layer-index/sources/north-america/us/hi/Maui.pdf 

Based on that email I included the imagery into JOSM with https://josm.openstreetmap.de/wiki/Maps/USA%20States?action=diff&version=327&old_version=326