Lincoln had little formal education but he was a voracious reader. When he arrived in New Salem, Illinois, at the age of 21 he had a neighbour who had 27 books.
Prof Carruthers says: "With a name like Jack Kelso or Jock Kelso, it is little surprise that this is a Scotsman. He is certainly one of Lincoln's mentors."
Sam Wheeler, state historian of Illinois, says: "
Lincoln heard Kelso recite the words of Robert Burns complete in the Scottish dialect, acting out the poems and Lincoln picks up that habit."
"So very difficult a matter is it to trace and find out the truth of anything by history." -- Plutarch