The original GEDCOM import in 2011 has Mildred O Hahn with 2 husbands, Mielak and unknown Conforti. All without dates. The children were not properly asigned to the two fathers. I would assume that those with last name Conforti just need to get disconnected from Mielak and connected to Conforti and vice versa. And ideally, hopefully, everybody gets some dates.