Mr. and Mrs. Glenn Gehrke of Clarkston announce the engagement of their daughter, Gina Marie Gehrke, to Duane Alan Leinninger II, son of Mr. and Mrs. Duane Leinninger of Grosse Pointe Farms. Gehrke, a 1994 Clarkston High School graduate, earned her undergraduate degree from the University of Michigan-Flint and a master’s degree from University of Michigan, Ann Arbor, where she is also working toward a Ph.D in neuroscience. Leinninger attended Wayne State University and is a senior web systems engineer at Livonia-based Quicken Loans Inc. An autumn wedding is planned.