Ria, thank you for the information. Not only have have I never been out of the US, I am not very familiar with the provinces in the Netherlands. All of my information has come from Mass cards (which are written in Dutch), but they give the name of the person, sometimes their spouse, the birth and death date, place of birth and place of death. Nine of the cards that I have show the birthplace as Mook or Nijmegen. Of the others, one relative was born in Kervendonk one in Loenen and another in Valburg.
All of the BUSKENS relatives died in Nijmegen, the ROELOFS in Mook. I do not know if these place are located near Colderveen or Drenthe.
Thank you again for your help. Janet