I found the following western snap buttons shirt brands when visiting various local thrifts stores in September 2017.

Wrangler
Taos
Blue
American Eagle Outfitters
Abercrombie & Fitch
True Religion
Vintage
Moment of Truth
Miller
Hollister
Guess
George Straight
Gap
Emcee
Arizona Jeans
American Rag
Aeropostale
44mm

Moment of Truth western shirt with sawtooth flaps on front pockets.

I found this Gap western snap button shirt at a thrift store.

I found this Taos brand western snap button shirt at a thrift store.

I found this orange True Religion western snap button shirt at a local thrift store.

Taos Western, “Putting the West in Western”, size medium

I found this Wrangler western snap buttons shirt at a thrift store.

I found this Guess snap button shirt at a thrift store.

I found this Blue western snap button shirt at a thrift store.

I found this American Rag snap button shirt at a thrift store.

I found this Hollister snap button shirt at a thrift store.

I found this vintage Miller western snap buttons shirt at a thrift store. Miller Western Wear is out of Denver, Colorado.

I found this Arizona Jean western snap button shirt at a thrift store.

I found this I found this Abercrombie & Fitch western snap button shirt at a thrift store.

I found this 44mm (Legendary Work Wear) western snap button shirt at a local thrift store.

I found this Aeropostale western snap button shirt at a thrift store.

I found this Emcee western snap button shirt at a thrift store.

Here is Vintage snap button shirt made by Route 66 Original Clothing Company.

I found this American Eagle Outfitter western snap button shirt at a thrift store.

I found this American Eagle Outfitters western snap button shirt at a thrift store.

I found this George Straight western snap button shirt at a thrift store.

I found this American Eagle western snap button shirt at a thrift store.