Hello Carol, From information on the Register of the Chadsey Family I see two Emma's who would be of the right age you state.
I will post the information, unfortunately it does not always list the place of the families. This is that case.
1~ I show an Emma P. Chadsey born 4 July 1847. Her parents were Jacob REYNOLDS CHADSEY b. 22 December 1817 ~ died 8 December 1890. He marriedMary R. SMITH 5 January 1846, she was born 18 November 1824.
2~ Emma Adelaid b. 28 September 1857. Her parents were William H. CHADSEY b. 16 December 1832 married Frances (Ellen or Allen) COBB abt. 1856. She was born February 1838 and died 23 April 1862. William married a second wife Mary Jane LORING 28 June 1868. She was born 29 September 1840.
I realize that your Emma could also have been born in the 1860's and still have been maybe more the right age. Just wanted to at least give you what i found.
Good luck, have you had no luck with the Census? If I see another Emma that i missed, I will get back to you.