Meyer Rubin, who died May 2, was a prominent geochemist at the U.S. Geological Survey. (Family photo)

The first time Kathleen Brennan met Meyer Rubin, her future father-in-law, he had a plan for how they would spend the day.

“I’m taking you to all the museums in Washington, D.C.,” Rubin told her. “Just run through them to look. See which one you really like. We’ll go back to that one and really look at it.”