How to Sharpen Your DNA Detective Skills

How inspiring was "The Genetic Detective" TV series featuring CeCe Moore? It's fascinating to see her piece together an unknown person's family. In practically no time, she finds enough family tree evidence to identify the DNA donor.

While CeCe's detective work inspired me, it also confounded me. Why can't I get anywhere with the matches I find on GEDmatch?

Then I remembered…people upload their DNA to GEDmatch. That means they tested somewhere else. Maybe they're using the same name or handle on their original testing site. I found someone that way before. First I discovered him on GEDmatch, and then I realized he was my DNA match on Ancestry.

Over the long weekend I had fun identifying a couple of DNA matches who'd been a mystery for a long time. I solved each one by finding one familiar last name in their family tree. That last name was from one of my grandfather's hometowns in Italy. In the end, I pieced together their families to find a connection to myself.

I had another match I really wanted to crack. All I had was her photo and her handle, which I figured was some version of her name. She's one of those pesky DNA matches with a connection to both my parents.

Start with a Simple Search

A web search for her handle found her right away! There I saw the same photo of her and her full name. Returning to Ancestry.com, I discovered her last name might not be Italian. And, in fact, it was her married name. Thanks to New York City marriage indexes on Ancestry, I learned her maiden name, her birth date, and her place of birth.

Find Their Current Connections

I went to Facebook, as Cece Moore would do. Very little of my DNA match's page was public, but I made a big discovery. A photo of her and her mother had a comment from someone with a familiar last name. This person had a tree on Ancestry. I'd been looking at it a bit earlier.

Before long, I learned the names, birth dates, and birth places of this DNA match's parents and 2 older siblings. Then I learned the names of her father's parents. Finally, I could take this research back into Italian vital records.

That was the end of the Ancestry document trail. But I got what I needed. Her father's family comes from a town neighboring my ancestral hometowns. I needed to find her grandparents' birth records. Then I'd be able to build out their family trees until they connect to mine.

I had to marvel at what had happened so far. I went from knowing nothing about her to knowing very specific details. And it all happened in a few minutes.

Dig Into Their Ancestors' Past

With a kick-start from this match's relative's family tree, I found her great grandfather's birth record. The year before it, I found his parents' marriage records. And guess what? The 1857 bride was born in my grandfather's hometown. In fact, she and her whole family are in my family tree already.

I knew if I went back a generation or two, I'd find a connection to my family tree. And I did!

I did it! I found this mystery DNA's connection to my mom's side of the family fast enough to please the likes of CeCe Moore. I may know more about her ancestry than my DNA match does.

I suppose some of you are freaking out about the lack of privacy. We all leave a digital footprint and a paper trail. As a genealogy fan, aren't you glad your ancestors left behind a paper trail for you to follow?

I have no intention of reaching out to this DNA match. Or to many of the very-distant matches I've identified. I only want to use their ancestral clues to beef up my family tree. How else would I have learned that a teenage girl from Baselice, whose father died before she was born, married a man in another town in 1857?

I'm no crime solver, but I'm pretty damned happy with my genealogy detective skills today. Isn't it time to revisit your unsolved DNA matches?

How to Create a Targeted Genealogy Research Plan

I've been all over the place with my genealogy research lately. That's fine. It's all fun and helps me make progress. But since I've got a long weekend, I want to do some carefully targeted research.

Here are my 4 steps for creating a targeted research plan. Think about how this applies to your research.

1. Choose Your Most Important Goal

If you've read a few of my articles, you probably know I'm trying to find out why my parents share some DNA. If there's a common ancestor, I want to know who it is. I'd like to figure this out while my parents are still able to have a laugh about it.

2. Look at the Research You've Done

I've built the daylights out of both their trees. Lately I've been working on one of Mom's under-developed branches. This branch's hometown is so small, it was common for the young ladies to marry men from another town. Did one of those grooms come from one of Dad's towns?

DNA Painter showed that Mom and another match (I know exactly who he is) overlap in 2 places on Dad's chromosomes. But I have no inkling of a relationship between Mom and this other match.

The Leeds Method gave me a way to examine Mom and Dad's shared DNA matches. But I didn't reach a conclusion.

Tools and methods only got me so far. Now I've got a theory, and I'll work to prove or disprove it.

I've looked at their shared matches on Ancestry DNA, and reached out to many matches with no real progress. Some offer no family tree. Those who do have a tree don't have a visible connection to me.

I made a spreadsheet (yes, another spreadsheet!) of my parents' 8 shared DNA matches. I included the number of centiMorgans (cMs) they shared with each and across how many segments. This helped me see which matches skewed more toward Mom, and which leaned more toward Dad. I made note of familiar last names in the available family trees.

3. Decide Where It's Best to Focus

Even though they're not the closest matches, I decided to focus on 3 matches with a family tree. A 4th match has a tree, and it's entirely incorporated into mine because of our relationship. But her tree is entirely on Dad's side of the family.

4. Spell Out Your Plan of Action

For the 3 matches with undeveloped family trees, I latched onto a familiar name.

• Donato Zerrillo was born in 1896 in the same town as my Dad's father. He's in my tree with a lot of relatives. I can explore his branches further to see if any lead to Mom's family.
• Salvatore Antonio Pozzuto was born in 1884, also in my Dad's father's town. I need to give his ancestors more attention, too. I'll see where his branches lead.
• Giuseppe Leone was born in 1882 in the same town as my Mom's father. I've already got a working theory to try to prove. Giuseppe's father was Michele Leone. There were 2 Michele Leones in town born a year apart. One of them was my 2nd great uncle. If this DNA match is a descendant of my 2nd great uncle, that would make total sense. And get this: I already know his relationship to Dad. He and I share my 4th great grandfather Pietro diPaola. We have a half 4th cousin once removed relationship.

The 3rd option seems to be the most important to follow. I already have my paternal relationship nailed down. And I think I have a good lead on the maternal relationship.

If this theory is true, I'll have 1 DNA match closely connected to my 2 parents.

My goal this weekend is to try to connect 1882 Giuseppe Leone to my 2nd great uncle Michele Leone.

If I tackle these, or if I try and strike out, I can get back to my aimless-but-fun family tree research.

How to Work Out Errors in Your Family Tree

The Ellis Island website was my gateway to genealogy. In my early days, I found ship manifests for my 2 grandfathers and other relatives. Then came my Ancestry.com membership, and my next gateway: census records.

What busted my family tree wide open was microfilm. I learned I could go to a Family History Center to view vital records from my Grandpa Leone's hometown in Italy. I began a 5-year process of viewing microfilm and typing every fact into a laptop. I have a text file with 29,864 lines of facts from his town's vital records, 1809–1860. I entered those facts into Family Tree Maker software to see how all the families fit together. (If you have an ancestor from Baselice, contact me!)

I'm related to 95% of the town. That research added 15,000 people to my family tree.

But I'm sure I made some errors. I couldn't look at each document again to correct any mistakes. Until 3 years ago. That's when a free website called Antenati published all those vital records and more. Now I have easy access to all the information I transcribed from microfilm in the dark.

Yesterday I ran Family Tree Analyzer to find some of those mistakes. It seems I have a family unit whose birth years don't line up. The 11 children (eleven!) have birth years from the 1760s to the 1780s. The problem is their mother, Antonia Cormano, was too young to have had the first 2 of her children.

And if her birth year is wrong, so are my estimated birth years for her parents and grandparents.

A routine error check lead me to several generations of one family with age issues.

The whole mess hinges on the unknown birth year of her first child, Antonio Colucci. Antonio died before 1809 when civil records began. So I can't find his death record easily. I estimated his birth year as 1746—25 years before his eldest child was born. I need to re-examine the marriage records of his descendants to sort things out.

Side note: Italian marriage documents are awesome. They include the bride and groom's birth records. And if any of their parents are dead, you get their death records. If their fathers and grandfathers are dead, you get the grandfathers' death records!

I wanted to learn the true birth year of Antonia's first-born child, Antonio. To find such an early record, I needed to find a male descendant of his who married after he died. Antonio's grandson Michele Antonio Colucci married in 1854. His marriage records did indeed have a death record for his grandfather Antonio. It shows his birth year as 1759, very different from my estimated birth year of 1746. That would help solve my problem with the birth years of Antonia and her ancestors.

But, of course, there's a complication. If Antonio was born in 1759, then he's too young to have had his 2 children born in 1771 and 1775!

The ripple effect of one bad date is enormous! (Are any "Indiana Jones" fans thinking of the "Bad dates" line right now?)

Maybe Antonio's death record had his age wrong. These mistakes happen all the time. There were no other well-timed marriages that would include the death record I want. But let's say the birth year of 1759 is about right. Biologically, he could have had a child in 1775. So maybe his daughter Angela's birth year of 1771 is wrong. With a child born in 1797, Angela could have been born a bit later.

Her 1832 death record says she was 61 years old, born in 1771. Early birth records from the town rarely include the parents' ages. My only hope of seeing Angela's age apart from on her death record is her daughter's 1811 birth record. Sadly, that record confirms Angela's husband's age, but doesn't mention her age at all.

It's hard to imagine his age could be off by much when he's only 27 years old.

Well, that was frustrating. All I can do with what I have is fudge Antonio's birth year a bit and work backwards from there.

The following changes are going to need asterisks:

• I'll push Antonio's birth year back a bit and record it not as 1759, but as 1753. That'd make him an 18-year-old father. That's not common in this town, but it sometimes happened.
• I'll leave his father with his documented birth year of 1735. That'd make him an 18-year-old father, too. Like father, like son.
• Despite what her death record says, I'll change Antonia Cormano's birth year from 1742 to 1735. That'd make her an 18-year-old mother. It's like "Romeo and Juliet" if they'd lived.
• Then I'll follow my usual protocol. For Antonia's parents and grandparents, I'll subtract 25 from the year their child was born. If I change Antonia's birth year to 1735, then her parents were born "Abt 1710", and their parents were born "Abt 1685".

I'm not happy with fudging 2 documented dates, but the pieces didn't fit. I plan to work through this entire extended family, adding documents and sources to Family Tree Maker. If I'm lucky, some overlooked document will turn up with a better clue.

Genealogy, like life, can be messy. Slap on that bandage and keep searching.