Family children data: what CDC and NCHS birth records count, which fields they carry, how the NSFG differs and why provisional figures get revised, and how to test a celebrity family claim against them.
Celebrity families, children and baby names research in Massachusetts: the State Archives, the vital records registry from 1931, and where SSA data differs.
Privacy safe family profiles facts: why celebrity family claims lose their citations, how to spot circular sourcing, and the provenance fields to record.