It looks as if Mercinia is buried in New York. She is not in the cemetery records for Wexford Co., but her record is in the Wexford Twp., Wexford Co., Death Records. It reads as follows:

Whitney, Mercinia
Township: unknown, Whitesville, NY.
Cemetery: Unknown
Death: November 14, 1904 Wexford Twp., Wexford Co.
Age at Death: 27 years, 4 months, 24 days
Birth: NY
Cause of Death: hypostatis congestion of lungs
Father: Samuel Coats, b. NY. Mother: Augusta Barrett, b. NY.
Undertaker: W.H. Shaver of Sherman, MI.

Source: Kathy Soukup ksox_1999@yahoo.com