How to pronounce “holley” in English

Carl Sagan talked romantically about a solar sail mission to catch up with Comet Holley.

But they found people-- they, people from the Holley family stepped forward and said, we pronounce it Holley, not Halley.

Seeing her face, seeing her emotions, hearing her voice-- just, I remember when Shawn Holley wrote me and had her first phone conversation with you.