Related Clues:

• Grandfather of Bart, Lisa, and Maggie
• 1861-65 prez
• Biblical name thought to mean 'father of many'
• President known for honesty
• Prime minister who helped his country land the 2020 Summer Olympics
• President Lincoln, informally
• Mr. Lincoln's first name, casually
• He shared a phone booth with Bill and Ted
• Half a ten-spot
• He can be seen at the western end of the National Mall, informally
• Respected leader's call ... h'm ... with ban on air travel?
• Psychologist Maslow with an eponymous 'hierarchy of needs'
• Party in 1858 debates, colloquially
• Genesis name that's also presidential
• Tad Lincoln's father