Abraham Davenport was born in England in 1714. He migrated to America between 1735-1745 and settled in St. Mary's County, Maryland. He married Mary Simms about 1745 and had 11 children - Elizabeth, Stephen, Abraham, John, Marmaduke, Anthony, Adrian, Mary, Samuel, Catherine, and Nancy. During the Revolutionary War, Abraham and his family moved to a farm in what is now Jefferson County, West Virginia. Today the farm is called Altona Farm and his descendents still reside there. Abraham died there in 1789. Known as the Altona Davenports.

Thanks to Martin' Davenport's recent research, there seems to be pretty good evidence that Abraham was adopted at a very young age by the family of Basil Davenport (1662-1714) of Wiltshire, England. Basil was the great grandson of Richard of Wigston, progeniter of the Albemarle Davenports. The adoption would explain why the Y-DNA of the two lines are are different.


Listed below are some of websites dedicated to the Altona 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" davenportdna.com

A good place to expand your research is the Davenport Archives website. It contains hundreds of Davenport related documents, photos, trees and includes lists of researchers and their interests.




Altona Branches

The following are the known male branches of the Altona 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" davenportdna.com

1st Generation 2nd Generation 3rd Generation 4th Generation Notes Kit #
Abraham 1714-1789 Stephen 1749-~1802        
Abraham 1714-1789 Abraham 1752-1825 Braxton 1791-1862     47538
Abraham 1714-1789 John 1753-1816        
Abraham 1714-1789 Anthony 1757-1835 Ira 1797-1862     44798
Abraham 1714-1789 Adrian 1759-1841 Marmaduke (1784-1852)     232735


Y-DNA Test Results

 Click here to download an Excel file of these Y-DNA results

The descendents of Abraham Davenport  belong to Haplogroup I1a

These are the Y-DNA results to-date of the participants descended from the Altona 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 Altona 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.


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 davenportdna.com. 

Kit #


Current Residence

Earliest Known Ancestor plus more

47538 H Davenport West Virginia

Abraham Davenport (b. 1714 England - 1789 Virginia) > Abraham > Braxton > Henry > Henry

44798 Christopher Davenport  Kentucky Abraham Davenport (b. 1714 England - 1789 Virginia) > Anthony > Ira > Bazzill > William (1863-1938).
188040 Michael Davenport Ohio Adrian Davenport > James Berry (1876-1947) > Marvin (1914-2002)
232735 John Davenport Minnesota Abraham Davenport (b. 1714 England - 1789 Virginia) > Adrian (1759-1841) > Marmaduke (1784-1852) > Adrian > James > Louis > John (1918-2006)

Donald Davenport


249782 John Davenport


Benjamin Davenport (1802 Virginia - 1892 Harlan, Iowa) > Benjamin (1842-1925) > Charles (1868-1941) > Ward (1895-1977)



 Other Surnames