At Talk Left, an "experienced DUI attorney" researches the laws in effect at the time and writes to Jeralyn of Bush's 1976 suspension (2 years) for DUI that:
In 1976, that would be unthinkable for a first offense. If this was a first offense, the suspension would have been for four months, for a second offense, one year (subject to reduction to six months), and three years for a third offense (subject to reduction to two years). (The Maine legislative reference librarian faxed me the 1976 statute today, saying that it is not accessible on the web.).
There's a lot more -- including "If the posted MVA record is correct, Bush must have had two priors within ten years. Have you seen any explanation for this record anywhere?"
As I said, there's more, so read it all (particularly if you're near Maine or know legal research).
Did Bush Have More Than One DUI Offense?
Keiths