Roelof was a farmer in Flatlands, and an elder in the Dutch Church. In 1715 he was Captain in the Fifth Company of Kings County Militia.

He died 13 Apr 1761 according to an Ancestry.com posting entitled Voorhees Genealogy Database. Gloryanna Terhune’s book says his will dated 20 Feb 1753 was probated 13 Apr 1761 (recorded on p. 3 of Lib. 23, New York Sur. Off.). The first part is quoted in her book on page 9:

Feb. 20, 1753 I, Roelof Terhuen of Grovesend in Kings County, being very sick, will that after payment of debts ... I leave to my son Garret, my great selver kop [silver cup], and my keenen swoord [keen sword], and my leder britses [leather breeches], and the selver botten hoels [silver buttonholes]. I give to my son Roelof a gun; to that child of my son Albert named Roelof, my gun and Great Byble. To son Albertus, all that farm where I now live, and the meadow that lies in Flatlands, and he shall pay 150 pounds to each of my five daughters...."

Roelof and Marretie had eight or nine children, depending upon which research is read