T206 portrait questions

[goudey1933]

Basic question ...I know Carl Horner"s portraits were used but what other photographers work was used?Are all the portraits in the style of Mathewson,Cobb Johnson etc.Horner portraits?How many of the( Horner?) style portraits are in the set?
Thanks,
Scott

[Jobu]

Here is a gallery of T206 images:

http://t206resource.com/Photos%20Gallery.html

I have this Ellam RPPC that was used for his card, though it isn't a portrait and I have no idea who the photographer was.