Here's a start....per ancestry indexes this is info on Martha in 1851:
Martha Dunlap Reid, Age: 6, relationship Dau, born Stevenston, Ayrshire
Father: David
Mother: Mary
Stevenston, Ayrshire
Address: Townhead Street R Arnolds Land
Enumeration District: 2
Roll: CSSCT1851-139
Household members:
Lane Lack age 17
David Reid age 47
Martha Dunlap Reid age 6
Mary Reid age 46
William Reid age 5
Elisabeth Sangal age 20
and again in 1861:
Martha D Reid, age 16, relationship Dau, born Stevenston, Ayrshire
Father: David
Mother: Mary
Address: No 70 Townhead St
Enumberation district 2
Roll: CSSCT1861-90
members of household:
Archibald Gray age 9
David Reid age 57
Martha D Reid age 16
Mary Reid age 56
William Reid age 15
James Russel age 24
Best wishes
Jean