Jane McElhager 87 (born 1793) [1790 in Cemetery];
Eliza McElhager 50 (born 1830);
James McElhager 42 (born 1833) [1836 in Baptism Register];
Eliza McElhager 36 (born 1844) [1842 in Cemetery];
Augustine McElhager 20 (born 1860) [Augusta in Cemetery];
Mary McElhager 19 (born 1861) [1856 in Cemetery];
Sarah J. McElhager 18 (born 1862);
William D. McElhager 16 (born 1864) [Wm. B. in Cemetery].
Apart from dates, we have two significant changes. It look as if Augustine was male, not female Augusta and William's middle name possibly began with D not B, maybe as his uncle was David. Eliza clearly doesn't fit into this nuclear family. She was in fact a single cousin, daughter of David senior and sister of David in Greenville below. She was a Linen Weaver who had stayed in Jamestown.
The younger family in Greenville were cousins of the Jamestown lot and were:
David McElhager 39 (born 1841) [1834 in 1851 Irish Census];
Mariah McElhager 38 (born 1842) [1838 Maria in Cemetery];
Minnie McElhager 14 (born 1866) [1864 in Cemetery];
Annie McElhager 12 (born 1868) [1866 in Cemetery];
Dollie McElhager 10 (born 1870) [1868 in Cemetery].