The Pearsall Family

Members History Genealogy

Home 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 19^th 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 PEARSALL FAMILY DNA SURNAME PROJECT CALCULATOR: 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: GOALS 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)--à ###