Pearsall Family Shield



The Pearsall Family


Members History Genealogy






Pearsall Family DNA Surname Project


Number of Pearsalls By Location


Maps by Family Surname


The History of the Parshall Family from the Conquest of England by William of Normandy, A.D. 1066 to the Close of the 19th Century (1903)


The Parshall Family A.D. 870-1913 (1915)


History and Genealogy of the Pearsall Family in England and America (1928)









The Pearsall Family DNA – Surname Project





May 17, 2008


To use the calculator below:

1.       Move the “Number of Markers Tested” slider on the far left e.g. 37, 43, 67 etc.

2.       Then move the “Number of Generations” slider

3.       You can also adjust the “Average Age Between Generations” to get an approximate figure for how many years before present

4.       Next, read how many marker mismatches between the two individuals e.g. 0, 1, 2, 3

5.       The point above the number of marker mismatches equals the probability two cousins shared a common ancestor in G generations that was used in step 2

6.       The average mutation rate generally not modified, but can be to see how that affects the probability


Time to Most Recent Common Ancestor (TMRCA) calculator:





1.       Establish a reference for Pearsall in each state and country,

2.       Establish a reference for other possibly related surnames (e.g. Piersall, Parshall, etc), and

3.       Establish a reference for earlier roots (e.g. England, Normandy, Norway, Sweden, and the Balkans).



 TO NEW RESULTS (updated May 26, 2008)--ŕ







Excursion Inlet, Alaska


Press F11 for full-screen.