David Dunlop was still working at Auchencree Farm in 1861. Interesting coincidence that the possible William Graham was working on the same farm in 1851. Trying to work out what the relationship was, if any, between David Graham Snr and Janet ( who also seems to have been born Graham) and this William who was working for them in 1851. The Dunlop children are the sons of a Thomas Dunlop and Elizabeth Graham. She appears to have been born in 1816 to David and Janet.
Isobel