The Tidewater Davenports were those Davenports who settled in the Peninsula or Neck between the Potomac and Rappahannock Rivers in the 1650s.  They paid for their own passages, i.e., claimed no headrights, and were sufficiently wealthy to buy already patented land, i.e., they did no surveys, were not involved in the patent process.  They were clearly of higher social status than the Pamunkeys, were planters and artisans of substance from the beginning, were involved with both Government and the Church.  The given name Fortunatus was unique to the Tidewaters, and the first and most notable Birkett Davenport (of Culpeper County) was a Tidewater.  Prior to the Revolution, these Davenports located close to Atlantic waters, were to be found in counties affected by tides, hence the label "Tidewater."  Most of the early records of these Davenports have survived, need to be compiled and organized.  (Thank you John Scott Davenport for this description.)


Listed below are some of websites dedicated to the Tidewater Davenports.  Each represents the complete line or information about its progenitor. If you know of additional websites that might fit this same criteria - please contact the administrator at info "at"

A good place to start any Davenport research is Nevada Jack's Davenport Directory and Davenport site. It contains lists of hundreds of Davenport researchers and their interests.


Tidewater Branches

The following are the known male branches of the Tidewater line. For our purposes a branch would begin with the sons of the 1st generation. If there was only one son then we would start with the sons in the 2nd generation and so on. We would like to test at lease one individual from each branch. The red highlighted entries are branches for which we do not have test participants. Of course we will accept any Davenport participants but especially need the non-highlighted branches. 

If there are additional branches not listed or other changes need to be made - contact info "at"

1st Generation 2nd Generation 3rd Generation 4th Generation Notes Kit #
William 1708-1771 Fortunatus 1738-1771       36674
William 1755-1847 Allen 1807-1895       7575
William 1755-1847 William       30234


 Y-DNA Test Results


The descendents of Tidewater Davenport  belong to Haplogroup R-M269
Click here to download an Excel file of these Y-DNA results

These are the Y-DNA results to-date of the participants descended from the Tidewater Davenports. The different row colors represent the separate branches of the line.  Click on the Kit # to view more information about the individual Davenport linage.  Newer results have a purple block to the left of the kit number. The Modal haplotype is what we believe the Y-DNA of Tidewaters looked like based on current results.  Red and blue cells show where an individual varies from the modal. Red indicates movement upward, while blue downward. Combined pink cells represent "connected" markers where the actual difference is counted as one.


 Kit #  /19 ab   1 2 ab      abcd H4iiaiib    ab    S1aS1b    S1  ab                 Kit #
  The participants below match the Tidewater Davenports but no link has been found yet.
 75751324141011141212121313301891011112515193015151717121219241715171738391212                              7575
.   /19 ab   1 2 ab      abcd H4iiaiib    ab    S1aS1b    S1  ab                  


The following people are participating in the Davenport Surname DNA Project.  You may view more detail for some by clicking on the link in the Ancestor column.   To email the participant, use the kit # followed by @ and then 

Kit #


Current Residence

Earliest Known Ancestor plus more

36674 Robert Davenport New York

Tidewater Davenports. William (b. abt. 1708 Lancaster County, Virginia-1771) > Fortunatus (1738-1771) > Joseph > Shadrack > Joseph > Nicodemus (1879-1955)

 7575 Michael Davenport  Georgia William Davenport (1755-1847) from Pitt County, North Carolina > Allen (1807-1895)

William Davenport

North Carolina

William Davenport (b.abt 1755 Pitt County, North Carolina) > William > Stephen > William (1879-1934)
86759 Davenport

North Carolina




 Other Surnames


In most cases when any of our Davenport results have had a high resolution (37 or 67 marker) match - it was with another Davenport. However, there have been a few other surnames that came very close to the Davenports. For our purposes, very close means they match on 33 out of 37 markers or better, or 62 out of 67 or better. The surnames listed below are those that are very close to this Davenport line on the 37 or 67 marker test.
This does not necessarily infer that they had a common ancestor. But it may be worth looking into the possibility. The first step is to determine if the ancestors lived in the same vicinity at the same time. When viewing the "prospects" - give the 67/67 a higher priority, then 66/67, and 65/67, and so on.
Surname67 MarkersSurname37 Markers