How to Spot and Avoid 9 Common Genealogy Mistakes & Errors

Introduction: Mary Harrell-Sesniak is a genealogist, author and editor with a strong technology background. In this guest blog post, Mary discusses 9 common mistakes made when doing family history research, and suggests ways to avoid them.

"Family history researchers are often frustrated by the mistakes of others—particularly when there is an obvious error in identity, such as the mistake explained in this 1914 Virginia newspaper article. It points out that a member of the Gwathmey family was incorrectly identified as having been a maid of honor to Queen Elizabeth.
Rchmond Times Dispatch Newspaper Gwathmey Family Genealogy
Richmond Times Dispatch (Richmond, Virginia), 17 May 1914, page 41.
This sounds like an obvious mistake, and one that could have been corrected with simple subtraction. Unfortunately, once a mistake is written in a book or newspaper article, the mistake is often carried into other research—forever frustrating the more serious genealogists.
Genealogical mistakes are not often easy to sort out, so let’s discuss some strategies.
1. Abbreviations Are Not Always What They Seem
Two of my favorites are “NA” and “NMI.”
In the case of the first abbreviation, “NA” might indicate non applicable, naturalized, Native American or even Navy, demonstrating the importance of finding the “key” explaining what an abbreviation actually means.
Another abbreviation that sometimes causes confusion is the use of “NMI” in place of a middle name. It is not an actual moniker, but rather used to indicate that a person has no middle initial—no middle name.
2. Age-Related Mistakes
  • Women who are too old to be mothers.
Although Mrs. Steve Pace, of Rose Hill, Virginia, reportedly gave birth to her 17th child in 1939 at the age of 73 (see the Wikipedia article “Pregnancy Over Age 50”), it is rare for women to give birth over the age of 50.
If a woman continued to give birth through her 40s, then it is possible that a report of her having a child as an older woman may be correct.
However, whenever you see such an older mother-child relationship claim, examine the possibility that the family may have been raising an orphan or a grandchild.
  • Persons who were born too young or old to have served during a military event.
If you are researching an ancestor for a lineage society, such as the Sons or Daughters of the American Revolution, start by figuring out the beginning and ending dates of the event.
For example, the American Civil War occurred between 1861 and 1865.
Although there are examples of very young veterans, most of the younger set did not serve in a military capacity—unless they were older. One exception was Civil War Missouri veteran George Huffman, who enrolled as a volunteer in the 13th Missouri Infantry on 4 November 1861 at the age of 14. He re-enlisted on 8 February 1864, and was considered to have been the youngest veteran to have re-enlisted that year—as explained in this 1864 Massachusetts newspaper article.

Lowell Daily Citizen & News Newspaper George Huffman Civil War


Lowell Daily Citizen and News (Lowell, Massachusetts), 2 September 1864, page 2.
For the most part, however, it is safe to assume that someone—other than a drummer or bugler—must have been at least 15 when he enlisted for combat service. Therefore, it is unlikely that a combat veteran actually served in the Civil War if he was born after the year 1850.
Now, if a child served in a non-military capacity, then you might find evidence of children as young as seven involved in a war—such as Nathan Futrell, a young boy who served in the American Revolutionary War.
Greensboro Daily News Newspaper Nathan Futrell Revolutionary War
Greensboro Daily News (Greensboro, North Carolina), 3 January 1971, page 24.
You can also apply an age factor to determine the likelihood of an older person serving in the military.

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I think Mary has given us some great things to consider.  And thank you to
By for publishing it on Genealogy Bank.