Donna-Jo Vorderstrasse was the sixth child in her family yet felt like the oldest.“My mom always referred to her first family and her second family,” Vorderstrasse said. “I was the oldest of the second family.”The first family consisted of five children born over an 11-year span starting in 1940. Five years later, Vorderstrasse was born, followed by two more children within another five years.Her father, Jeremiah Rodden — “Jerry” for short — worked 40 years as a machinist at …