Hi Tunji
I think this might be them in 1851. I have a question mark down to Euphemia showing as Elspet (quite a different name, not one for variants like this):
David Lawson 62, farm servant, b. Lintrathen
Elspet Lawson 57, b. Kingoldrum, Forfarshire
Isabel Lawson 24, b. , b. Tannadice, Forfarshire
Peter Lawson 19, farm servant, b. Tannadice, Forfarshire
William Edward 4, grandson, b. Lintrathen
Helen Low 8 Mo, grandaughter, b. Lintrathen
Address: Newton, Lintrathen
I'll see if I can find them in 1861 and post.
Monica