Geraldine is the feminine of Gerald — Old Germanic ger (spear) + wald (rule). "By choosing an American woman to run for our nation's second-highest office, you send a powerful signal to all Americans: There are no doors we cannot unlock" — from her acceptance speech at the 1984 Democratic National Convention. The Mondale-Ferraro ticket lost 49 states to Reagan-Bush; her path was not repeated until Sarah Palin (2008) and Kamala Harris (2020 winner). Geraldine Brooks — Pulitzer for March (2006).
Subject of countless 1984 election retrospectives.
Geraldine does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Geraldine reduce to 3, The Communicator. This is a traditional interpretive system, not a factual claim about the name.