D.J. Spilker and Jeri Thomas couldn’t be more different. Sixty-nine-year-old Spilker is a type A personality, an active person who is not one to let tasks sit uncompleted. Thomas, on the other hand, is very much type B. The 80-year-old is content to spend her mornings in her “nest,” a pool of blankets on her lap while she reads the newspaper. But together, the dynamic works for them.