The diary notes that the Pinkertons assisted in the battle against the Native American tribe, but a newspaper shows that the historical segments take place in 1838. The Pinkerton Agency was not started until 1850 and did not have offices until 1855.
Alma pronounces the 2nd 'u' in 'unscrupulous' with a soft 'u' (as in 'dumb') rather than with the proper 'oo' sound (as in 'stupid').