The origins of individuals or families who moved to Glamorgan from Cornwall during the Industrial Revolution are often unknown, as official records did not appear until 1838 and often the older parish registers are incomplete. This study is concerned with the study of the origins of one such family, called Morley, which was well established in Glamorgan by the mid-nineteenth century. In 1848 in the parish of Michaelston-super-Avon, Thomas Morley, a roll turner in the Copper Miners Tinplate Company located there, married an Anne Pierce who came from Ludgvan in Cornwall. The lineal descendants of their large family, and the antecedents of his family, have been discussed in detail previously, but very little is known about the origins of Anne’s family in Cornwall. This account attempts to correct this omission by exploring her antecedents using the accepted English genealogical practice of tracing the family by following the sequence of family Christian names. This process has enabled the antecedents of her family to be unearthed in southwest Cornwall. Her father, John Pearce (M)1 has been unequivocally identified as a miller from Ludgvan, who was born in 1766 and died in 1827. He married Margaret Winnan of St. Erth in 1800 and they had nine children most of whom were born in Ludgvan. Tracing the identity of John’s father has proved more difficult, as there are several possible candidates born in the expected timeframe. With, it is thought that he was a William Pearce of Gulval who married Elizabeth Gilbert of Helston in 1765. His father in turn was a John Pearce (L) who married Triphosa Donithorne of Gulval in 1727 and they had nine children. The identity of John’s father has not been established with the same degree of certainty and there are two possible contenders, both called John Pearce (K), one born in Lelant in 1692 and the other born in Paul in 1699. On balance, it is thought that the person born in Lelant was the antecedent of John (L) and it is suggested that his father in turn was a John Pearce (J) who was also born in the same parish.