I have two ancestors with the surname Henderson: Helen Henderson (who married John Dandie) and Janet Henderson (who married Peter Hardie).
My ancestral line for both is:
1 Lois Whimpey
2 Ivon Walter Whimpey (1923-2009)
3 Edith Jean Marr (1922-1990)
4 John Ernest Whimpey (1884-1960)
5 Ivy May Harley (1890-1959)
10 Alexander Alexander Harley (1866-1939)
11 Henrietta Louisa Russell (1865-1949)
20 Robert Harley (1817-1891)
21 Euphemia Dandie (1824-1901)
42 John Dandie (1800-1841) John was descended from Helen Henderson,
43 Catherine Susannah Hardie (1799-1867). Catherine’s mother was Janet Henderson
84 John Dandie (1762-1851)
85 Janet Donaldson (1771-1860)
168 John Dandie (1733-1816)
169 Eupham Steven (abt 1730-?)
336 John Dandie (abt 1700-?)
337 Helen Henderson (abt 1700-?). I have very little information about Helen. She married John Dandie on 30 December 1720 at Forgan, Fife, Scotland. Based on the date of marriage, I would estimate she was born about 1690-1700. Since there were a number of baptism entries that might be for Helen, I have not been able to trace this line back any further at this stage.
86 Peter Hardie (1760-?)
87 Janet Henderson (abt 1762-?). At this stage, I have very little information about Janet. She was still alive at the time of the 1841 census, and appears to have died before 1851, as I have been unable to find her on the 1851 census. I found a couple of online trees which gave a date of death of 24 November 1846 (at Ferry Port on Craig) for Janet, but the only source of the information was the International Genealogical Index.
There is a burial entry on ScotlandsPeople for a Janet Henderson, who was buried 27 November 1846 at Ferry Port on Craig, aged 85 years. On the 1841 census, Janet was listed as being 79 years old, so the age appears to be about right, but it seems unusual she would have been buried under her maiden name.
Since the name Henderson is a fairly common surname, I have not been able to determine which of the many baptism entries for Janet Henderson, born about 1762, is for my Janet.