I suggest you check familysearch.org to see if there is additional information on the Jellisons there.

Good Luck.

1880 Census of Mariaville, Maine:

Name: Reuben Jellison
Residence: Mariaville, Hancock, Maine
Birthdate: 1809
Birthplace: Maine, United States
Relationship to Head: Self
Spouse's Name: Eliza T. Jellison, F 62
Spouse's Birthplace: Maine, United States
Father's Birthplace: Maine, United States
Mother's Birthplace: Maine, United States
Race or Color: White
Ethnicity: American
Gender: Male
Martial Status: Married
Age: 71 years
Occupation: Farmer

NARA Film Number: T9-0480
Page: 17
Page Character: A
Entry Number: 376
Film number: 1254480