The first three pictures were taken using Apollo Orb lighting:

This picture was taken using an XL Rogue Flashbender:

These two were taken using an Einstein Strobe light with the help of an Octabox:

Bannack Portraits by Loren Yarrington

I think the bottom one was taken using a Westcott spiderlite TD6 with also a fair amount of natural light:

Bannack Portraits by Loren Yarrington