Looks as though, Laurie, you're right (of course)... David Herbert Donald writes about the President-elect ... " Just as Lincoln emerged from the narrow vestibule of the Calvert Street Station, Cipriano Ferrandini a Baltimore barber and a few associates planned to assassinate him". Pinkerton advised a schedule change.
“The honest man, tho' e'er sae poor,
Is king o' men for a' that” Robert Burns