Van Cortlant is the surname recorded for Stephanus' father at Stephanus' baptism. Capitalization of the preposition "van" is incorrect and has been corrected per project naming conventions. Quackenbush-118 08:43, 28 March 2017 (EDT)
Source: S15 Ancestry Family Trees Publication: Name: Online publication - Provo, UT, USA: Ancestry.com. Original data: Family Tree files submitted by Ancestry members.; Repository: #R1
It may be possible to confirm family relationships with Stephen by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with Stephen: