Great News! Yolanda was able to find a distant relative that confirmed that John Paris’s son, Henry AND grandson, Henry, both carried the middle name of “Demetrio.” This is great news as this lends supports to the oral history that John was also known as “Demetrio.” We had evidence that grandson Henry’s middle initial was D. but we could not find any evidence of what it stood for. Yolanda was able to find the family of grandson Henry D. Paris by looking in the phone book and calling up a former contact. If I understand it correctly, the informant is the daughter of the late Henry D. Paris’s (the grandson) wife and her husband, William Enos.

In other news, I  have enlisted the participation of a member of the Perez/Taitano who has agreed to have their  DNA tested. I hope that this will shed light on the connection of Francisco Taitano that owned land adjacent to that owned by Demetrio Perez. There is also a Francisca Perez that owned land to the south of that owned by Demetrio. This particular individual is from the Cruz clan. The land was bordered on the north by land owned by Mariano de la Cruz.....hmmmm.

Thank you to all who have donated to the project so far! We sincerely appreciate your support!

~ Jillette Leon Guerrero


Comprehensive as it is, the research of Jillette de León Guerrero presented in this blog complies with one of the most important aspects of scholar research: the suppression of the hardships of all the previous work, sacrificed in favor of a direct, broad presentation of the facts. After all, what matters is the outcome of the research.

But, ah! How much work is behind these facts presented in Across the Water in Time… Only Jillette herself knows. Documentary research proves to be one of the most difficult intellectual activities: Records are often scattered in different locations; the researcher does not really know what can be found, nor where, among the thousands of records deposited in one given location… Hours and hours of tedious search of microfilms, photocopies or original documents, can often be rewarded with no particular data.

However, in other instances, such as the naturalization document of “Juan Perez”, presented below, the researcher hits the jackpot by locating a single, revealing document, which can serve as a testimony of the hypothesis and foster the continuation of the work.

~Carlos Madrid

Today I received good news from Roberta Estes, owner of DNAeXplained – Genetic Genealogy. You can view her site at:

After reviewing the DNA test results of Benjamin Paris  and Yolanda Paris Sugimoto (great grandchildren of John Paris), Jose Arriola Perez (Guam) and Justo Torre Leon Guerrero (Guam) she believes that:

            Benjamin and Jose Perez are related via the Perez line (YDNA line). You may remember that Vincent Diego suggested that we do additional testing to avoid a sampling error. We are waiting on the results of those tests that are expected in late April.

            Justo, Benjamin and Jose are related but not through the Perez line. Since we know the relationship between Jose and Justo is via the Leon-Guerrero line I think we can reasonably assume that the relationship between Justo and Benjamin is via the Leon-Guerrero line as well.

            In reference to the autosomal tests, she says, “Benjamin and Yolanda are siblings, but Jose looks to be related to no one but your Dad [Justo]. However, when I moved to the chromosome browser and changed the cM to a threshold of 1, and selected all the kits involved… you can see that indeed, Jose does match both Benjamin AND Yolanda, just in smaller segments.”

So the task is now to try and work backwards through the cousinship estimates:

Justo and Benjamin/Yolanda 3rd cousins

Justo and Jose 2nd cousins

Jose and Benjamin/Yolanda (waiting on test results)

I've got my work cut out for me!
~Jillette Leon-Gue

Work is progressing with our project. Today we shot our first scene recording Omaira Brunal-Perry, curator of the Spanish documents collection at the Micronesian Area Research Center explaining the land document that we found that mentions Demetrio Perez. It went well and we did get some good footage.

Yesterday we learned that we only received half of what we requested from one of our grantors. While we are very pleased to have received any funding at all, this was disappointing.

Because the grants do not cover travel costs, I have had to cover those expenses so far. With another trip planned to Hawaii to meet with the Paris family and shoot footage for the television special I will have to get creative to raise funds for the project. The off-island camera crew and DNA testing are other expenses that  are not covered in the grants.

To start with I have included a donation button on the homepage of the website at If you would like to donate you can contribute to the project by visiting the website and clicking on “To donate click here.” There are three categories, Supporter ($20), Contributor ($50) and Sponsor ($500). We appreciate any level of support.  

Just got off the phone with Vince Diego, our geneticist. It was good to hear that he thinks that based on the oral history and DNA test results that it appears that there is a relationship between the Paris, Perez and L.G. clans. What that relationship is remains to be seen. He also agreed that more Y DNA testing needs to be done on more markers to rule out a sampling error with the Guam Perez. As a result of this discussion I placed an order for a 67-marker test.  Hopefully this will confirm a relationship between the Paris and Perez families and shed more light on the possible relationship.

He included a line drawing of the Coalescence Process that I’ve included below.

I also heard from Bennett Greenspan, President and CEO of Familytree DNA, the testing company that we use. He concurs with this assessment although he says, "The quantity (total cM) is lower then I'd like for 3rd cousins, (referring to Paris )  but it's hard to believe that they just happen to show up 4th and  5th on your match list (referring to my match list) due to the size of their longest segment."

These men are scientists and thereby are drawing their conclusions based on science. I know that they don't necessarily have all of the cultural and historical information that I do regarding these families which lends credence to their assumption.  This demonstrates that neither DNA testing and traditional genealogy testing are sufficient alone. They  go hand-in-hand -  each contributing to the overall understanding of our past.

The challenge for us is finding the missing link between these families.

~Jillette Leon-Guerrero

Definition From Wikipedia: “In genetics, coalescent theory is a retrospective model of population genetics. It attempts to trace all alleles of a gene shared by all members of a population to a single ancestral copy, known as the most recent common ancestor (MRCA; sometimes also termed the coancestor to emphasize the coalescent relationship[1]). The inheritance relationships between alleles are typically represented as a gene genealogy, similar in form to a phylogenetic tree. This gene genealogy is also known as the coalescent; understanding the statistical properties of the coalescent under different assumptions forms the basis of coalescent theory.

The coalescent runs models of genetic drift backward in time to investigate the genealogy of antecedents.[2] In the most simple case, coalescent theory assumes no recombination, no natural selection, and no gene flow or population structure. Advances in coalescent theory, however, allow extension to the basic coalescent, and can include recombination, selection, and virtually any arbitrarily complex evolutionary or demographic model in population genetic analysis. The mathematical theory of the coalescent was originally developed in the early 1980s by John Kingman.[3]





Carlos Madrid and I went to the Department of Land Management last week to try to find land documents for “Demetrio Perez.” While we were unsuccessful at finding any documents prior to the one that mentions Demetrio, we were able to get a map that included the area known as JALAGUAG. This was the area where the property that Demetrio Perez sold to Jose Blas Asuncion in 1868.

The one hectare property was bound on the north by that of Mariano de la Cruz, in the east by that of Gertrudis Tenorio and Jose Flores, in the south by that of Francisco Perez, and in the west by that of Francisco Taitano.

It is interesting to note that in 1897 this area was a plantation of coconut and coffee. 

- Jillette Leon-Guerrero