After William Dixon's death, his widow married John Houghton. Reliable sources are needed for the dates of William's death and Anna's marriage to John. Authoritative sources for Ann's birth and death dates are also needed. However, we know that Ann was William Dixon's son with Anna, because of John Houghton's will:
John Houghton, of New Castle county, made his will (No. 1233) 1 mo. 10, 1720, and it was probated May 27, 1720. He mentions his wife Ann, his brother-in-law, John Gregg, his daughters Mary, Martha, and Rebecca Houghton, and children Dinah, Ann, George, Henry, Thomas and John Dixon.
It may be possible to confirm family relationships with Ann by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Ann: