Sunday, January 01, 2006

DNA Match Positively Identifies Hunley Crew Member

_________________________________________________________________

Navy Newsstand
From Naval Historical Center Public Affairs
October, 2004

CHARLESTON, S.C. (NNS) -- The Naval Historical Center's (NHC) Hunley project staff and consultants positively identified Joseph Ridgaway, a Hunley crew member, through DNA testing Sept. 24.

The NHC Hunley staff has been actively working to identify the eight pioneers who manned the craft Feb. 17, 1864, when it became the first successful combat submarine in history.

"Before the DNA match, our only tools in identifying the Hunley crew for their burial was the archaeological, forensic and genealogical data," Warren Lasch, chairman of Friends of the Hunley, said.

In 2001, once the crew's remains were excavated from the submarine, Hunley scientists sent samples of each crew member to the Joint POW/MIA Accounting Command in Hawaii, where the samples were selected for DNA analysis.

From there, the samples were sent to the Armed Forces DNA Identification Laboratory (AFDIL).

AFDIL extracted mitochondrial DNA (mtDNA) from the samples and laser scanned the DNA sequences. Since then, they have waited for the Hunley scientific team to locate DNA samples from potential descendants to cross reference in hopes of making a match.

"A mother passes mtDNA to her children, meaning mtDNA identification can only be done through direct maternal descendants," said Jackie Raskin-Burns, AFDIL Supervisory DNA Analyst who led the analytical work on the Hunley crew samples.

After extensive historical research, forensic genealogist Linda Abrams was able to locate a maternal descendant.

"When we received the sample, we performed mtDNA typing and the sequence was consistent with one mtDNA sequence obtained from the remains of the Hunley crew," Raskin-Burns said.

The mtDNA sequence was consistent with the crew member who was second-in-command of Hunley and stationed at the seventh crank position: Joseph Ridgaway.

“It is a marvel of modern science that after 140 years we can give these eight crewmen of the Hunley a personal identification through facial reconstructions, genealogy and DNA analysis," said said Dr. Robert Neyland, Underwater Archaeology Branch, NHC. "I am very proud that the Department of Defense, Department of the Navy, and AFDIL could make this happen through their sponsorship of the Hunley project and utilizing technologies developed for the military.”

For related news, visit the Naval Historical Center Navy NewsStand page at www.news.navy.mil/local/navhist.


____
www.schnorkel.blogspot.com

0 Comments:

Post a Comment

Links to this post:

Create a Link

<< Home