The deficits accrued in the 60's and 80's were alleviated somewhat by the tax cuts revenue stimulation if you want to go there.
In no way were the deficits from previous decades eliminated, on the contrary the US went from being the world's largest international creditor to being the world's largest international debtor during his administration. Reagan himself said this was the biggest disappointment of his presidency. Your fixation on revenue generated while ignoring everything else makes no sense.