From the details we've found so far here's a rough family tree-
Thetford Young (c1808-23 Aug.1856), carpenter, married Rose (c1803-19 June 1885).
1. Robert Young (c1824-30 Dec.1866).
2. Eliza Young (c1849-after 1911) married Robert Orr.
?3. James Young (d.1926 N.Z.)- ?son James Thetford Young (born 1890)
4. Samuel Young (c1827), blacksmith.
5. Jane Young (c1838) m.(1860) James Cairns
6. Margaret Young (c1829) m.(1852) Robert McNall
?7. Tedford Young (c1850) m. Mary- family
& 4 children died young.
Eliza Young (c1849-after 1911) married (1866) Robert Orr
1. Robert (1867)
2. William John (1869)
3. James (1872)
4. Mary Jane (1874)
5. Samuel (1876)
6. Margaret "Maggie" (1879-1971 U.S.) m. ___ Masson.
7. Thetford (1882)
8. Arthur (c1885)- to U.S.
9. Sarah (c1887)
Thought there was a Roseanne Orr in the family but must have ruled her out earlier- sorry for the confusion.