John Chisholm is an Assistant Professor in the Department of Astronomy at the University of Texas. He is a Hubble Fellow who previously worked at the University of California-Santa Cruz under Professor X. Prochaska. Chisholm completed his PhD in Astronomy at the University of Wisconsin-Madison, where he worked with Professor Christy Tremonti, and also earned a B.S. in Physics with a minor in Mathematics from Boston College. His research focuses on the processes by which galaxies grow by influencing their surroundings over time. He is particularly interested in understanding how galaxies shaped the reionization of the universe and how they develop over time. Chisholm's work involves studying the gas and stars in nearby galaxies to create a roadmap for interpreting galaxies as observed by future telescopes. His research lays crucial foundations for upcoming instruments such as the Giant Magellan Telescope and the James Webb Space Telescope, aiming to observe young galaxies from the early universe and to provide insights into massive stars and their role in the reionization of the cosmos.