I don't know about the whole continent, but many people who had been influenced by Spanish style of dresson the continent during the 18th and 19th centuries, carried their revolvers in sashes, not around the waist, but higher- around the stomach, that out the guns in a "cross-draw " position about the same height as a shoulder holster does today. These were broad sashes, not the skinny sashes worn around the waist. A " Cummerbund" is the closest man's style stomach sash, an originated not with the Spanish, but in India. The Broad waist sash is centuries old as an idea.
The broad sash does a better job of concealing the revolver, and keeps it clean. Wearing even a vest or light jacket will conceal it from view for more formal social occasions.
Many gunfighters carried their revolvers in leather lined pockets in their outer coats, rather than in a pouch waist holster. The Earps used this method in 1874, which is a bit late for your time period. The Early Texas Rangers, who first got the Patterson Colts, and later the Walkers, carried them in either pommel holsters, or in waist sashes. Belt holsters were substituted for use when riding a horse, so that the pounding of the horse did not rub their ribs raw. Cowboys took to using shoulder holsters in case they were thrown by their horse, or the horse fell down and pinned them to the ground, with a belt holster trapped under both the cowboy and the horse. A Shoulder holster could save the man's life, if the horse could not be quickly calmed, and rolled over, and off the cowboy. It let him shoot the horse before it could kick or continue to do more damage to the cowboy by rolling.
The idea of making a " Fast Draw " from a holster is largely a 20th century idea. Holsters were made to protect the gun from dust, and debris, which is why the flap holster was so popular for so long. If you thought matters were going to get out of hand, so that you needed a gun, you took the gun out of the holster and kept it in your hand, often down by your side, so it was not seen as an act of provocation.
Often just seeing that you were armed and prepared to act calmed hot tempers, and improved foolish judgments. It works the same way today.
You can find out a lot about early holsters in Elmer Keith's " Sixguns", and about Texas Rangers and their gear in Col. Charles Askins' "Gunfighters".