Govert (formal name probably Godefridus) Loockermans was the son of Jacob Lokermans and his wife Maria, of Turnhout, Flanders. He was born in 1616 or 1617, probably in France, where his father Jacob Lokermans had been living temporarily to work as a peat-cutter and to learn the French language. His given name is that of Jacob's father, Goyvaert the Elder (ca. 1545/50-1628).
In the fall of 1640 Govert moved to Holland. At the time of his marriage he lived on the Prinsengracht in Amsterdam, now Ariaentje had become a widow, he was able to marry into the firm, which he did without hesitation. In the fall of 1641 he returned to New Netherland on board of the ship De Coninck Davit, together with his wife and Hendrick Van de Water, her son from her previous marriage.
Marriage Amsterdam 9 February 1641, Govert Lockemans van Turnhout, varensgesel (sailor) living at the Prinsegracht.....& Adriaentie Jans living at Haerlem married February 26, 1641 in Amsterdam
" Covert Loockermans, j. m. Van Tumhout, en Marritje Jans, j. d." - marriage 11 July 1649 shown RDC records of Samuel Purple 
Govert was baptism sponsor 1659 Jun 29 for Cornelia daughter of Pieter Cornelis Van der Vers; other sponsor was Cornelia de Peystert.
Govert was baptism sponsor 1643 May 10 for Stephanus son of Olof Stephenszen Van Courtland; other sponsor Marritje Thymens.
Govert was baptism sponsors 1643 Sep 06; Lysbeth daughter of Jacob Wolfertszen; Govert Loockermans, Jan Van Brug, Jannetie Sert., Ariaentje Jans and again 1648 Sep 20; Cornelis Mauritszen; Gerrit; Govert Loockermans, Grietie Gerrits, Geertie Jans and other to be found at this source 
Govert Loockermans died in New Amsterdam in 1670 or 1671 (the source for the death date of May 18, 1671 on this profile is not clear). He left no will, which suggests that his death was unexpected; it was unusual for a man of substantial wealth to die without a will.
↑ Frijhoff, pp. 9 and 38. Many researchers give Govert's birthdate as July 2, 1612, based on the baptism on that date of Godefridus, son of Jacob and Maria Lokermans, in the church of Saint Peter in Turnhout. However, in 1633 Govert was reported to be 16 years old, and in 1639 he was reported to be 22 years old, indicating a birthdate in 1616 or 1617. There is no record in Turnhout of a birth to this family during that period, but Frijhoff reasons that this can be explained by the family's residence in France at the time of Govert's birth.
↑ Quote from Source: Frijhoff, Willem. Revised version published 7 January 2016] pg. 17
↑ inschrijvingsdatum: 09-02-1641 naam bruidegom: Lokemans, Govert naam bruid: Jans, Adriaentje
Source: Amsterdam archief bronverwijzing: DTB 455, p.23 opmerkingen: Huwelijksintekeningen van de KERK. Archief van de Burgerlijke Stand: doop-, trouw- en begraafboeken van Amsterdam (retroacta van de Burgerlijke Stand) Ondertrouwregister: NL-SAA-26374391 09-02-1641 - Lokemans, Govert - Jans, Adriaentje Marriage (1) scan, right page, second entry- DTB 455, p.23 - Huwelijksintekeningen van de KERK. - A22968000013
Frijhoff, Willem. Govert Loockermans (1617?-1671?) and His Relatives: How an Adolescent from Turnhout Worked His Way up in the New World. Translation of article "Govert Loockermans (1617?-1671?) en zijn verwanten: Hoe een Turnhoutenaar zich wist op te werken in de Nieuwe Wereld," published in Taxandria, Jaarboek van de Geschied- en Oudheidkundige Kring van de Antwerpse Kempen, LXXXII (2011), 5-68. Published at  by New Netherland Institute; retrieved 29 November 2014. 52 pages. Revised version published 7 January 2016.