From your post, I think you'd like any information on:
Mable Bump, b ???? in ????, d. ???? in ????, m. John J. Johnson of S. Towanda.
John J Johnson, b. ???? in ????, d. ???? in ????.
Addie, legal first name unknown, maiden name unknown, b. 1867 in ???? d. 1957 in ????, m. ???? Bump.
E---- Bump, b. ???? in ????, d. ???? in ????. m. Addie ????
Clifford Bump, son of Addie ???? and E---- Bump. b. ???? in ????, d. ???? in ????.
Philo Johnson, b. ???? in ????, d. ???? in ????. m. ????.
1900 United States Federal Census, Pennsylvania, Bradford, Albany, District 1, page 2B
(Name, relation, Birth mon-yr, BP, father's BP, Mother's BP)
Bump, Edward, head, Dec. 1864, Penn, Penn, Penn, farm laborer
----, Adaline, wife, Sep 1868, Penn, Penn, Penn
----, Mable, Daughter, Mar 1887, Penn, Penn, Penn
In addition, Edward and Adeline have been married 16 years. Adeline has borne 3 children, 2 still living.
Two houses down we find:
Bump, Dennis, Head, Sep 1839, Penn, NY, Penn
----, Sharlott, wife, May 1843, Penn, NY, NY
----, Maud, GrandDau., Feb 1885, Penn, Penn, Penn
Dennis and Sharlott have been married 37 years. He is a farmer.
In light of the 1880 (Below) I'd guess Maude there was the second of Adeline's children (above) who were still living. She might have been raised by them since birth, she might just be helping out as they age.
In 1910 Edward and Adaline are still living in District 1.
Bump, Edward, head, 45,
----, Adaline, wife, 42
----, Mable, Daughter, 22
I can't find Edward in the 1920 index.
In 1930 there is one Clifford Bump in Pennsylvania. He is an inmate in the Children's Home.
Pennsylvania > Bradford > Towanda > District 50, location: Children's Home, Page 2A:
Kisner, Harry M., Head (Supt.), 61
----, Jessie, Wife, 58
Bump, Clifford, 8, Pennsylvania, Unknown, Unknown
The only other Clifford Bump on the index is b. 1888, living in Illinois with a wife Nellie. He was born in Illinois.
This looks like Edward in the LDS 1880:
( NameRelation Marital Status Gender Race Age Birthplace Occupation Father's Birthplace Mother's Birthplace )
Denis L. BUMPSelfMMaleW39PALaborerNYPA
Scharlott BUMPWifeMFemaleW36PAKeeping HouseNYNY
Edward L. BUMPSonSMaleW15PALaborerPAPA
George C. BUMPSonSMaleW9PAPAPA
Census Place Albany, Bradford, Pennsylvania
You might write to the Historical Society to see if any records from the Children's Home are still around. If your Clifford is the one in the home, Addie dumped him for some reason.
In 1930, Adeline and Edward are living in Cherry, Sullivan, Pa, without any kids. He is a watchman in a coal mine.
I hope this helps.