In the "About" section, the information given there seems to be about Herman op den Graeff - Abraham Hermans op den Graeff's father, not about Abraham.
"Occupation: Was a cloth and linen dealer; Called "The Bishop of the Mennonites", Became a burgher 1605 at Kempen, Rheinland, PRUSSIA, Settled 1609 at Krefeld, Rhenish Prussia, GERMANY, Was one of two delegates from Krefeld to Council of Dordrecht.
Hermann Isaac op den Graeff son of Issac op den Graeff..."
I think that both paragraphs of information are incorrectly placed: The first most probably belongs with the father (Bishop Hermann Isaac op den Graeff) of this profile, while the 2nd paragraph, based on the dates, most likely belongs with the son of Isaac Herman, this profile's brother (Isaac Hermann op den Graeff, and his son Abraham Isaacs op den Graeff).
... moving them ...