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Corson Surname DNA Project Newsletter – 28 November 2005

Hello everyone, 

Since last month’s report, one new participant signed up and another received his results. 





19 participants, 18 test results reported 

Genetic matches: 2 sets of three, 3 sets of two, 6 unmatched 

Separate family lines: 11 (7 in haplogroup R1b; 1 each in E3b, I1a, I1c, and J2) 

Average time for lab to process a DNA sample: 10.7 days 

Average time from sign-up to receipt of test results: 34.2 days


Division II (Sussex Co., NJ) – 3 participants, 2 results

A descendant with the surname Courser joined the project last month to test the hypothesis that he descends in a direct male line from Benjamin Fletcher Corsen (1692-1770), son of progenitor Jan Corzen (ca. 1649-1703). Based on documentary evidence, the participant’s earliest-known Courser ancestor was Captain Isaac Corser (1737-1840), who may have been a son of Benjamin Fletcher Corsen. Isaac Corser’s son, John (1765-1847), was a Loyalist who emigrated from New York to Nova Scotia about 1785, settling later in Prince William, New Brunswick.

Division X (Unknown) – 3 participants, 3 results

A descendant of James Courson (b. ca. 1762 in Lancaster Co., South Carolina) received his results this month. His results do not match those of any other participant in the project, which confirms that he does not descend from the two Corson/Colson/Corsa families whose genetic signature we've been able to estimate (Divisions I and II). Based on his genetic signature, he appears to belong to a haplogroup (genetic group) currently called "J2". This haplogroup originated in Anatolia (modern-day Turkey) thousands of years ago and spread into Europe about 5000 years ago. Today, the highest density of J2 individuals occurs in countries such as Turkey, Greece, Italy, and Spain. The closest, but still distant, results to this participant’s genetic signature come from countries such as Austria, Ukraine, Italy, Wales, and England. If James Courson or his close ancestors came from northern Europe, it is probable that a distant male-line ancestor of his migrated north from the Mediterranean region (possibly with the Romans, for example).


Division I (New England) – 3 participants, 3 results

We are still looking for male-line descendants of Samuel Corson (1719-1810) (Div. I-D) and Ichabod Corson (c.1725-c.1800) (Div. I-F) who would be willing to participate.

Division III (Staten Island, NY) – 4 participants, 4 results

We are still looking for male-line descendants of Benjamin Corssen's (1686-1740) brothers Jacob (1681-1742) or Christian (1676-aft. 1764) and Hendrick Vroom’s (1683-1769) brothers Cornelius (b. 1677) or Alfred to participate. Until then, we won’t know if the Corson or Vroom genetic signature (if either) represents that carried by progenitor Cors Pietersz (1612-1655).

Division IV (Cape May Co., NJ) – 4 participants, 4 results

We need to find at least one more participant from this Division to resolve the uncertainty about progenitor Carsten Jansen’s (1634- ca. 1697) genetic signature.

Division VII (Hunterdon Co., NJ) – 1 participant, 1 result

The participant from this brick-walled Division has yet to match anyone closely.

Division VIII (Colsons not derived from Corsons) – 1 participant, 1 result

The current participant descends from Adam Cols(t)on of Massachusetts, born ca. 1660. We welcome participation by those descended from him or other Colson progenitors.

Divisions XIII, V, VI, and IX – no participants

We still wish to recruit descendants of Daniel Corson (1763-1849), who moved from Sussex County, NJ to Ontario, Canada. We're also searching for participants with ancestors from European Corsan / Courson / Curzon / Korson families.


At least $495 remains in the subsidy fund to reimburse all or a portion of the test costs for eight participants from particular family lines in Divisions I, III, IV, VII, and X. You can see additional details at the project website:

If you have any questions about the project, interpretation of test results, or genetic genealogy in general, please contact me. If you’d prefer not to receive the newsletter, just ask me to unsubscribe you. The project website contains current and back issues of the newsletter that you can browse. If you know someone who would like to receive this newsletter, please ask that person to send me an e-mail address to subscribe.

Corson DNA Project website: