Truth is discovered

Robert Millikan disliked Einstein’s results about light consisting of particles (photons) and carefully designed experiments to disprove them, but ended up confirming the particle nature of light, and earned a Nobel Prize for that.

The photoelectric part of Millikan’s prize is centered around two papers: “Einstein’s Photoelectric Equation and Contact Electromotive Force” from January of 1916, and “A Direct Photoelectric Determination of Planck’s “h”” from March of the same year (those are paywalled links, but given the full titles you might be able to find copies that fell off the back of a digital truck…). These are both tour de force examples of precision experimental physics and a clear demonstration of Millikan’s integrity.