Make georeferenced maps editable

[MtnBiker]

In other words, can we create a Git system to save the files associated with the newly georeferenced and clipped map pages. Adjustments will need to be made to the georeferenced and clipped maps, and it would be preferable not to have to start all over. Maybe this will work itself it out if Git is used to download the maps for use in QGIS.

(What is the word for individual pages from Sanborn maps? Pages makes one think web pages).