Yesterday I found another generation of my Cottam family in the Lancaster area, and so was able to link to a lot of descendants.
My great great great grandfather, Richard Cottam, was born at Heaton-with-Oxcliffe, near Lancaster, but I had not been able to find his baptism, and thus his parents.
At the LDS Family History Centre in Johannesburg I ordered the film of church records for St Helen, Overton, and found Richard Cottam was baptised there in 1811, along with 10 siblings, including his brother Adam Cottam, whose whole family I had recorded in censuses etc, without knowing how he was connected.
They were the children of John and Mary Cottam, John being recorded as “Farmer of Oxcliffe Hall”. The only other Cottams found there in abundance were the children of Henry and Alice Cottam. Henry was a “Farmer of Heaton”. The next step will be to find if John and Henry were brothers and who their parents were.