"I also have some 1910 or 1911 dated FA 45 Colt rounds...and no they were not the Schofield rounds."

Those would be M1909 rounds, made for the Colt M1909 DA revolver (a variant of the Colt New Service revolver) which was briefly in military service, mainly in the Philippines. Pretty much the same as the .45 Colt cartridge, but with a slightly larger rim diameter for more reliable fired case extraction. The M1909 ammo was made only at Frankford Arsenal. Unusual cartridge, unusual revolver. Most of the revolvers never made it back from the Philippine jungles, and those that did are generally in poor condition. Finding a nice example of a Colt M1909 revolver is rare, but they do exist. Not quite like finding a Colt Paterson, but close.

Regarding the .45-70 case, Frankford used both F A and F headstamps at different times. Back when there was a distinction between the Rifle and Carbine loads, the headstamps were F C and F R, with a date. The Carbine and Rifle load distinction was ended in April 1886. You have one of the last loads of that type made. The Carbine load used a light load (55 grains) of black powder, and required a cork wad between the powder and the bullet.