Thank you. I think her name was actually Hulda not Hilda. I will be going to the cemetery myself in the next few weeks to take my kids to visit her daughter's grave. The daughter was their grandmother and was very private about her past.
If anyone has been to the cemetery, I am told that Hulda's plot has broken green glass that covers the length of the plot and it is difficult to care for the grass surrounding the area.
I am hoping Hulda's plot is next to her parents so I can get more information.