When I walk into Willow Park Baptist Church fifteen minutes early, I know I’m late. The assembly room is filled with mostly older men sitting at round tables covered in red, white, and blue tablecloths. On their heads are caps embroidered with letters that designate which branches of the military they joined, which ships they served on, which wars they fought in.The participants at Roll Call, a Fort Worth veterans group, look forward to their monthly meetings, and the parking lot is full well in advance of the event’s scheduled 11:30 a.m. start. Many visitors arrive in vans from retirement communities and assisted living facilities, while others carpool with friends.The nonprofit’s luncheon started with fifteen World War II veterans getting together in a restaurant in…