1695 Jul 21 Johannes, Johannes Beeckman, Aeltje Thomas. Wit.: Laurens Thomaszen Popinga, Johanna Lopeij, h. v. Henr. Beeckman. 
1719 Oct 18 Catharina, Johannes Beekman, Elizabeth Provoost. Wit.: Gerrardus Beekman, Maria Narburij. 
1720 Nov 16 Johannes, Johannes Beekman, Elizabeth Provoost. Wit.: Johannes Beekman, Aeltje Beeckman. 
1723 Sep 29 Catharina, Aeltje 2 linger, Johannes Beekman Jnr., Elizabeth Provoost. Wit.: David Provoost Jonat: z, Margrietje Kerfbijl; Willhelmus Beekman, Marijtje Schermerhoorn. 
1726 Dec 18 Wilhelmus, Johannes Beekman, Elizabeth Provoost. Wit.: Wilhelmus Beekman, Rachel Beekman. 
↑ 1.01.11.21.31.4 Thomas Grier Evans. "Baptisms from 1639 to 1730 in the Reformed Dutch Church, New York." In Collections of the New-York Genealogical and Biographical Society. Vol. II. New York: Printed for the Society, 1890.
It may be possible to confirm family relationships with Johannes 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 DNA with Johannes: