My grX2 grandfather James Davidson lived at Branxton Farm with his wife Mary Kirkwood and two daughters, Mary born 1846 and Elizabeth born 1850. James died in 1851, his wife Mary remarried 9 months later to George Skeldon. They had a family and are listed on census records but I can find no trace of the girls Mary and Elizabeth, until Elizabeth married my great grandfather, John Tunnah, in 1878.
I'n very new to tracing my family tree so would appreciate any help I can get.