Drawing Blanks

 

Following the path of a genealogical trailblazer can be helpful—until that guide ends up drawing blanks. In the case of the youngest child in Lyman and Deidama Dunham Jackson's family, that is indeed what happened when we look to their youngest child. 

Using the 1906 book, The Family History of Michael Jackson, we have so far traced most of the thirteen Jackson children. In many cases, the guidance of researcher Horace Mortimer Jackson has pointed us in the right direction. Perhaps in this final case, as so often happens, the baby of the family got shorted. 

Here's what the book tells us about the thirteenth Jackson child. First of all, her name was Lucy Deidama, garnering her mother's given name as her middle name. The author gives her date of birth as February 6, 1808, and indicates that she eventually married someone named Elisha Alderman.

That is the point in the brief narrative where we start drawing blanks. Of her death, the author provides merely a line "——" for the date. No place is given, not for her death, nor for her birth.

There were, however, several children listed. Of the eight named, however, even there we find a blank: the fifth child, a daughter named Calista, was said to have married "——" Clapp. With a given name like Calista, I thought it might not be that hard to determine the first name of Mr. Clapp—until I realized that husband's last name might not even be correct.

If it hadn't been for that old familiar destination for so many of the Jackson children who decided to leave home in Pennsylvania and move westward, I might not have found any further details to round out that scant history in the Jackson genealogy. But it wasn't long before I realized Lucy's family had left Pennsylvania's Erie County for Knox County in Illinois. Elisha Alderman had decided to follow so many of his Jackson in-laws.

While the 1850 census showed only six of the possible eight Alderman children in Knox County, that was enough of a jumping off place for me to trace the family's lines of descent. I started with the name I thought would be easiest to follow: their son who was listed in the Jackson book with the unusual name of Gilderoy. From that point, I've made it down to the current century with some of that son's descendants.

Granted, that makes one line of at least eight in this uncertain readout of the children of Lyman Jackson's youngest daughter. There is much more to still untangle, especially given the blanks left in that trailblazer's guidebook. But no matter how many blanks the author inserted in his narrative, there are still enough clues to enable a twenty-first century researcher with digitized records access to piece together the full story.

A Long Slide Down to the Present

 

This month began by listing what I had already learned about my mother-in-law's fourth great-grandfather, Lyman Jackson, in preparation to delve further into that man's family line and history as this month's selection from my Twelve Most Wanted for 2026. Starting from Lyman's birth in Connecticut in 1756, we followed him to his marriage in Vermont and the new family's migration westward, first to upstate New York, and then to Erie County, Pennsylvania.

It's been a lot of years since that time—not to mention a lot of miles—but this past weekend, I finally diagrammed one line of Lyman's descendants all the way to the current decade. Starting with Susannah Jackson Kennedy's move to Knox County, Illinois, and subsequent family lines moving to Kansas, then Nevada, and ultimately to Santa Rosa, California—site of that devastating 1906 earthquake mentioned in one family history book—I've finally finished that long slide down to the present, sticking close to each of those lines of descent.

Imagine my surprise, then, to arrive in our current century and discover that one Jackson descendant married and moved to an address in California which is an easy amble down the street and around the corner from where I currently live. That makes our neighbor my husband's fifth cousin once removed.

Granted, we have yet to meet these newfound Jackson cousins. I'm just in awe over being able to discover such a connection, not simply from a family with origins as far away as Connecticut, but as far removed as an ancestor who lived in the mid-1700s.

Before this month is over, there is still one more task to complete. Lyman and Deidama Dunham Jackson had yet another child whom we need to track. Tomorrow, we'll consider the baby of the Jackson thirteen, Lucy, the eventual wife of Elisha Alderman. With eight children mentioned in the genealogy drawn up by researcher Horace Mortimer Jackson, there's still a lot of missing verification left for us to find.