Regarding the GSV the first step was to create a street network and combine into one clean line object in MI Pro. I used our Local Street Gazetteer. I've included the .tab file in the attached zip file.
The next step is to create the HTML which I've included in the
attached zip file. Note that I have replaced our Google key with ##############################.
When added to SSA just associated the tab file with the template in Template Mapping.
Regarding the historic maps, these were purchased from Landmark about 10 years ago. They were brought into Pro, uploaded as NamedMaps and then created as NamedTiles. They were then cached and published.