Hello Cheryl, A couple of snippets that might add to your line.
8) Elizabeth Dorothea Schrader, born 09/06/1764. Married Carl Benjamin de Niesse.
25/11/1801 IV – George Justus Schrader, born at Colombo and died 26/10/1856. He married Magdelena Elizabeth Arndt, born 06/12/1801 and died 29/04/1878, the daughter of Bernard Christiaan Arndt, sitting magistrate at Mullaitiva and Anna Elizabeth de Niesse.
If so, can you give me more info on these to add to my records. If I can assist further let me know. Regards