Reginald Buchanan Henry (23 May 1881 – 18 Feb 1969) was a medical doctor, Captain in the

United States Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...

and

genealogist Genealogy () is the study of families, family history, and the tracing of their Lineage (anthropology), lineages. Genealogists use oral interviews, historical records, genetic analysis, and other records to obtain information about a family ...

Life

Henry was born on 23 May 1881 in the

Long Island City Long Island City (LIC) is a neighborhood within the New York City borough of Queens. It is bordered by Astoria to the north; the East River to the west; Sunnyside to the east; and Newtown Creek, which separates Queens from Greenpoint, Brook ...

section of

Queens, New York Queens is the largest by area of the Boroughs of New York City, five boroughs of New York City, coextensive with Queens County, in the U.S. state of New York (state), New York. Located near the western end of Long Island, it is bordered by the ...

. He was the fifth of six sons of James Buchanan Henry, Sr. and his second wife Louisa Anderson. Henry served in the Navy as a Captain in the

Medical Corps A medical corps is generally a military branch or staff corps, officer corps responsible for medical care for serving military personnel. Such officers are typically military physicians. List of medical corps The following organizations are exam ...

. Henry is best known for his book ''Genealogies of the Families of the Presidents''. In this book, he created a numbering system assigning a number to the individual indicating that person's position in the family tree. Because his book is the earliest book published which used this system, it has come to be known as the Henry system.Ancestry Magazine Mar-Apr 2002
/ref> Henry died 18 Feb 1969 in

Norfolk, Virginia Norfolk ( ) is an independent city (United States), independent city in the U.S. state of Virginia. It had a population of 238,005 at the 2020 United States census, 2020 census, making it the List of cities in Virginia, third-most populous city ...

References

{{DEFAULTSORT:Henry, Reginald Buchanan American genealogists 1881 births 1969 deaths