As the 1720s began, the Jervises lived “at the head of the Pequea”. There were very few other settlers.
Over the decade, more people moved to the area and took up lands. In 1729, there was a small settlement known as White Horse, in a new township named Salisbury, in a newly-formed Lancaster County.
Between 1715 and 1720, the families of Joseph Jervis, Daniel Cookson, and Joseph Cloud had moved to the west, along the old trading route toward Conestoga and the Susquehanna River.
In 1713, the Clouds, Cooksons, and Jervises had decided to move west.
Elizabeth Jervis Cookson had five children:
- Joseph Jervis – born about 1673
- Ruth Jervis – born 1680
- Daniel Cookson – born about 1685
- Mary Cookson – born about 1687
- Hannah Cookson – born about 1689