https://www.findagrave.com/memorial/114779515/jacobus-loper

Lieut Jacobus “Jacob” Loper

• BIRTH 25 Feb 1616 Stockholm, Stockholms kommun, Stockholms län, Sweden
• DEATH 1652 (aged 35–36) New York, USA
• BURIAL Burial Details Unknown
• MEMORIAL ID 114779515, information provided by Charles Solomon, # 48727306,

Married Cornelia Melyn 30 June 1647 in New Amsterdam, New Nederland. He was known as as Jacob Lagt de Loper, a Swedish ship's captain. Originally, this memorial attributed the middle name of "Teunissen" to Jacobus Loper. Recent information demonstrates that this attribution was incorrect; thus the middle name of "Teunissen" has been removed.

"In early Records of Albay, 1:246, his name is given as Jacobus Teunisse, alias de Looper. By his mark, which resembles the commercial symbol for number, he seems well identified with Jacob Teunissen Quick (Notarial Papers 1:191), who belonged to an English family which at an early date settled in New Amsterdam and descendants of which are still found in Ulster County.

As "de Looper" means "the runner," it is likely that this designation was a play upon the English name of Quick. According to Records of New Amsterdam, 6:307, Jacob Looper's wife was named Neeltie Cornelius, which again identifies him with Jacob Theuniszen, from Naerden, who in 1655 married at New Amsterdam Neeltje Cornelius, from Amsterdam.

Jacob Teunissen de Looper should not be confused, as has been done in the index to the Records of New Amsterdam, with Capt. Jacob Loper from Stockholm, who in 1647 married Cornelia, the eldest daughter of Cornelius Mely, and who died before April 1655, when his widow married Jacob Schellinger."

Spouse
Cornelia Melyn Schellinger1627–1717 (m. 1647)

Children
James Jacobus Loper 1648–1691
Jannetje Loper 1650–1743

https://www.findagrave.com/memorial/114779515/jacobus-loper