The NewCanaanite.com Summer Internship Program is sponsored by Carriage Barn Arts Center. Visitors to New Canaan’s main cemetery soon will be able to tour the hallowed grounds with a mobile app detailing the lives of some of the town’s most noteworthy residents interred there. Using cellular location technology, visitors to Lakeview Cemetery will be able to use the Otocast app for a self-guided tour narrated by a prominent local woman. The app will launch at 4 p.m. Thursday with a special tour, according to Nancy Geary, executive director of the New Canaan Museum & Historical Society. “We hope that people will come out,” Geary said.