There are actually citations in my record post above.
What I said was Boyer is a known hack; his books are often recompilations of other people's work and, in the case of his Quackenbush genealogy, does not print sources so that facts can be double checked. In fact in the arrival record he printed for Pieter Quackenbosch, the Quackenbosch name was added after the fact as he went by Bont until 1657 and in addition, there is no actual arrival record for Pieter. Do not trust Boyer.
Furthermore the Brouwer Genealogy blog, which has some incredible research, has some information about this.
http://brouwergenealogy.blogspot.com/2011/08/origins-of-adam-brouwer.html
In 2008 I authored an article titled, "New Insight into the Origins of Adam Brouwer." It was published in New Netherland Connections, volume 13, number 4 (Oct-Nov-Dec 2008), and can be found online here, and through the link, "Origins of Adam Brouwer," found in the right hand column of this page. If you search online, you will find numerous claims that Adam Brouwer was the son of either a man named Pieter Clementsz Brouwer, or a separate man named, Frans Sijmonsen Brouwer. Both claims have no basis in fact and have no documented or published records that even hint at such a possibility. They are simply wrong. The claim that Pieter Clementsz Brouwer is a father is most certainly an attempt by some "researchers" to link Adam Brouwer to some sort of "noble" or privileged family, something that Adam Brouwer was in no way a member of. "New Insight into the Origins of Adam Brouwer," takes on these assumptions by carefully considering the actual records that Adam Brouwer did leave behind. It also challenges the notion that his full name at birth was "Adam Brouwer Berckhoven," an idea that also has little basis in fact.
Certainly of equal interest, to the descendants of Adam Brouwer, is Adam's "Deep Ancestry," that being his origins prior to the period of readily available records. We know from the Y-DNA testing of numerous descendants that Adam Brouwer belongs in the Haplogroup known as E-V13, also referred to a E1b1b1a2. This Haplogroup is rare among European men today, and has it's largest concentration in the Balkans. An interesting theory into Adam's "Deep Ancestry," is presented by Richard Brewer, administrator of the Brewer DNA Project, and is found online at Adam Brouwer's Haplogroup, E-V13. A link can also be found at the right.
From New Insight into the Origins of Adam Brouwer
In none of these records does Adam appear with, or is, recorded with the name Berckhoven. The name Berckhoven as applied to Adam is only found for the very first time in the very last document associated with Adam. That is, his will. In his will, written 22 January 1692, Adam, for the first time, refers to himself as Adam Brouwer Berckhoven. Adam is the one who first uses the name Berckhoven. Hoffman points out that a few of Adam’s children are recorded with the Berckhoven name. This is correct; however, these records appear after Adam’s will is written, and for only a short period of a few years. On 6 February 1692, son Abraham Adams Bercko is married. On 15 September 1692, son Niclaes Berckhoven is married. Adam’s daughter Anna is married as Antje Berkove on 6 April 1693, and is called Berckhoven at her daughter Sara’s baptism on 9 April 1693. Daughter, Rachel, was married on 5 June 1698 as Rachel Berckhoven. The Berckhoven name then disappears and is not carried on by later generations. Prof. Willem Frijhoff supplies the simple, but profound, explanation for this. It is an explanation that has eluded all other Adam Brouwer family researchers to this date. Adam Brouw er was not from Berckhoven. Adam’s ancestors were not from Berckhoven. He most likely had ancestors who were brewers, as accounted for by the Brouwer surname, but they did not come from Berckhoven. Adam Brouwer was born in Cologne. That is clear from the marriage register at the New Amsterdam Dutch Church. Berckhoven (or “place of birches”) is only mentioned at the end of Adam’s life, by Adam, and therefore clearly refers to the location where Adam was at that time. That location, called Berckhoven, was the place that Adam himself created. Adam Brouwer’s beginnings were humble. He was illiterate.
That even accounts for the comma in "Whereas I, Adam Brewer, Berkhoon, inhabitant of ye Towne of Brooklandt"