I don't offhand seem to have much on Emma Harris, but I have some info that will supplement info you gave previously. According to "Schuck, Shock, Shook, Shuck, et. al" by Larry G. Schuck (can be obtained by inter-library loan from Mid-Continent Public Library, Independence, MO), Jacob Shook (11 May 1850-?) married Eliza Harris in 1875. Jacob was the son of Philip Shook (20 Dec 1818-18 May 1882) who married Margaret Eberhart (b. 1820)in Jun 1840. Philip was the son of David Shook (24 Sep 1789-13 Oct 1868) and Sarah Merk (1789-1860). They were married on 16 Oct 1808. David Shook was the son of John (Johannes) Schuck (15 Sep 1761-11 Feb 1799) and Elizabeth Barbara Ohl (1767-23 Jun 1832, died in N. Canton, OH). This John Schuck was killed when a tree fell on him that he was cutting down to build a barn in Northumberland (now Centre) Co., PA. He is buried in Heckman's Cemetery in Centre Co., PA. I have a photo of his tombstone. His father and grandparents arrived on the ship John & William in the port of Philadelphia in 1732 from Rotterdam. I have a copy of the ship manifest with their names.
I have more on the early Schucks, as well as the Ohls, both of which can claim membership in the Revolutionary militia, if you wish.