The “Jonathan Branch” probably descended from Thomas Calensowe, who was christened at Madron on the 1^st September in 1614. He was described as the base son of Jane. Jane may have been the daughter of Alan, who had children in Ludgvan between 1568 and 1593. A Jane Colensowe was buried in Madron on the 21^st September 1624.

There is a Jonathan Kalenson (son of Thomas) christened in Paul in 1655, probably the same man who married Katherene in 1688. In his will probated in 1708, he was described as a mariner on HM Ship the “Abound”, and named his sister Ann as his executor.

The next Jonathan born in the family was christened in Penzance in 1717, a son of Thomas. His father may have been the Thomas Calensow christened in Madron in 1676. This man’s father was also Thomas, possibly the original Thomas, son of Jane.

All these links are supposition, based on the naming patterns. But with the records being so sparse in this period these patterns help link the family together. I have tried to outline the branch in the attached file, Jonathan Branch, without including all the children.