Taken as an excerpt from a letter compiled by Robert Kenneth Davidson in 1933.
SECOND GENERATION OF DAVIDSON (a) THEIR IMMIGRATION The unreliable History of Lawrence County, Pennsylvania, states that in 1791, Robert and John Davidson, the two oldest sons of the second wife, Mary Dunlap Davidson, left Ireland and came to America. They must have been in their early twenties at that time. They drifted through the west. Robert perhaps going as far as Cincinnati, Ohio, but do not seem to have settled down permanently. Mr. Fred Davidson, who has done some independent research on the Family History, says that Robert and John Davidson came to this country in 1793 with their mother. Fred Davidson and the History of Lawrence County agree that in 1793 Mary Dunlap Davidson came to this country, bringing with her all of her children who were then in Ireland. She stopped temporarily in Eastern Pennsylvania. if John and Robert had come earlier, they learned of their mother's arrival, joined her, and in 1796 the whole family moved westward to the new, unsettled country along the Big Beaver River. On February 23, 1798 Mary Dunlap Davidson made a contract with the Pennsylvania Population Company, a corporation organized to sell western land, to buy a farm in Beaver county (now Lawrence County), and to this farm she and her children removed. In the family this farm is know as the Robert James Davidson Farm. It was in the possession of descendants of Andrew Davidson for over 100 years, being sold some time since 1900. It is said that the Davidsons were the first settlers in Big Beaver Township, and that the settlement which grew up near their farms was called Irish Ripple, because the Davidsons and their neighbors all came from Ireland. Irish Ripple has disappeared; its place was taken by Wampum. The country was still unsettled that as the older boys left home they could take up farms close to their mother's place, so that there grew up a little string of Davidson farms on the west side of Big Beaver River. Thomas Davidson, youngest son of the first John Davidson by his first wife, came to America a little later. He was born probably about 1765, left his father's home before the others, went to Belfast and became a linen weaver. He married in Ireland and had two children, both bore there: Nancy, about 1790, and John, born in 1792. Some time later Thomas Davidson determined to come to America also. He went to Cincinnati and bought a farm which, according to family tradition, was located in what is now downtown Cincinnati. But Thomas became desperately homesick and, learning by chance that his step mother and her children were in Western Pennsylvania, he abandoned his farm and came to join them, buying a farm near theirs, which is known in the family as the Hoyt Farm, a few miles southwest of Wampum. We know that Thomas Davidson was in Beaver County before 1803, as his name is given in a list of taxpayers of that county. The names of two other Davidsons are found in that name list of taxpayers, William Davidson and Robert William Davidson. They apparently did not belong to our family, although they might have been cousins whose relationship is now forgotten. William Davidson's father was a James Davidson, who died in Ireland some time after 1780, and his mother was Mary Ramsey Davidson, who came to this country when a widow like our ancestor, Mary Dunlap Davidson. The members of our family who came to this country were: Mary Dunlap Davidson: her six children Robert, John, Charles, Elizabeth, and Andrew; her stepson, Thomas Davidson, and his two children, Nancy and John. We do not know whether Mrs. Thomas Davidson died in Ireland or whether she came also.