Yes, I am researching the surname ROSENBOOM. My husband is Gerardus Johannnes Rosenboom born 1947, and he is the son of Gerardus Johannes Rosenboom born 1920. His Grandfather is Herman Roelof Rosenboom born 1891,who married Antoinette Maria Mulder born 1892, Great Grandfather was Herman Roelof Rosenboom born 1850, who married (1) Wilhelmina Petronella van den Broeke born 1852, (2) Maria Rosalia Alberta Kerckerinck born abt. 1880. The Great Great Grandfather was Harm Riklefs Rosenboomwho married Johanna Elisabeth Stohr. As far as I know most of this family came from Amsterdam. I look forward to hearing from you, regards, Robyn.