Looking for family of Bob Hertenstein, who passed away in April of 1967. I know he had several children and last known area of children is Strawberry Point, Ia. He was married twice, the second time to Barbara. I know there were 2 sons by a first marriage and 5 or 7 children by 2nd marriage. Bob is my brother and any info as to whereabouts of his family would be greatly appreciated. Bob was also a country/western singer and spent quite a lot of time in the military.