Dear Esther Van Rossem,
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Please visit NARA's Resources for Genealogists for ideas on beginning your genealogy research. Includes information on National Archives records that may help with your search, including Census Records
For Census records, for example, we searched the National Archives Catalog and located the Population Schedules for the 1900 Census in the Records of the Bureau of the Census (Record Group 29) that may include information on Thomas Scott. For access to the non-digitized schedules, please contact the National Archives at Washington, DC - Textual Reference (RDT1) via email at email@example.com.
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From the German Genealogy Group https://www.germangenealogygroup.com/ a list of deaths for all persons by the name of Thomas Scott who died between 1890 and 1902 in Brooklyn
Found information about Jacobus, Constance and children in the 1875 New York State Census and the 1880 U.S. Federal Census on Ancestry see links:
Jacobus death is listed in the Brooklyn Eagle Newspaper
Also on Findagrave
I could not find any info on his surviving children in the 1900 and 1910 U.S. Census nor for his wife Constance.