Holy Cross Church sponsors Girl Scout Troop #934. Girl Scouts are overseen by the Girl Scouts of Genesee Valley (GSGV), Irondequoit Service Unit. Generally, Junior Girl Scouts is open to girls in grades 4-6. Cadettes is open to girls in grades 7-8. Seniors is open to girls in grades 9-12. Girls interested in joining must register with GSGV, 1020 John St. West Henrietta, NY. The girls will learn practical skills and citizenship, work on merit badges, and have fun. Leaders must complete scout training, plus first aid, CPR, and background checks. In addition, leaders of troops sponsored by Holy Cross must complete the "Creating a Safe Environment" training.

Junior Girl Scouts Troop #934 meets two Tuesday evenings a month in the Holy Cross School Cafeteria. Cadettes/Seniors meet one to two times per month.