The bottom rifle looks VERY much like an English Sporting Rifle.
This, due to the English lock, flat bottomed bolster with platinum blow plug and drip rail, along with multiple leaf read sight along with a very low front sight.
This rifle looks almost identical to my bro's Joseph Lang rife, made in 1852 or 53. Identical right down to the trigger guard and checkering. Taylor's Lang rifle has a looped front sling attachment, pivoting from the under rib.