From the Wellsboro Agitator (Wellsboro, PA) 23 Dec 1890 on ancestry.com:
"Died: Plumley-At the residence of his son in Delmar, Pa. Nov 29, 1890 of pneumonia, Mr. Israel Plumley aged 79 years and 10 months. Mr. Plumley was born in New Hampshire and came to this region when a child with his parents. He joined the Methodist church at the age of 18. He was the son of Israel and Hannah Plumley long well known residents of Delmar."