Alison and Patrick O’Carroll of Seattle, Washington, and Maureen and Joe Gerber of Perrysburg, are pleased to announce the engagement of their children, Siobhán O’Carroll and Michael Gerber.

Siobhán is a 2013 graduate of the Bush School, Seattle, Washington; a 2017 graduate of the University of Chicago, where she earned a bachelor of arts degree in both history and law, letters and society; and a 2…