Geraldine is the feminine of Gerald — Old Germanic ger (spear) + wald (rule). A top-50 US baby name from 1929 to 1942. Geraldine Ferraro (1935-2011) — American Congresswoman and the first woman ever nominated for Vice President of the United States by a major political party (Mondale/Ferraro Democratic ticket, 1984). "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). Geraldine Page — eight-time Oscar nominee; won for The Trip to Bountiful (1985).
Subject of countless 1984 election retrospectives.
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.