Extract from the 1900 Census:
Name: Mabelle Tennant
Age at last birthday: 18
Date of birth: Apr 1882
Birthplace: Michigan
Race: white
Sex: female
Relationship to head-of-house: daughter
Home in 1900: Mount Clemens Ward 1, Macomb, Michigan
Address: 40 South Gratiot Street
Marital status: single
Able to read, write and speak English: yes
Father's birthplace: Michigan [sic]
Mother's birthplace: Michigan
Occupation: attending school
Siblings living at home: Robert H (age 9) and Helen C (6)
Census place: Mount Clemens Ward 1, Macomb, Michigan; Roll: T623 727; Page: 19A; Enumeration District: 60
Date: 18 Jun 1900

Article from the "Free Press" of Detroit, Michigan dated 8 May 1904:
Mrs. Louise N. Cragg's pupils will give the next regular Wednesday afternoon concert at Schwankovsky hall, assisted by Miss Anna Weeks, soprano, and Miss Mabelle Tennant, contralto, both of Mt. Clemens.

Article from the "Free Press" of Detroit, Michigan dated 28 May 1905:
Miss Betty Crocker, pianiste, pupil of Mrs. Louise Emsworth Cragg, of the Detroit Conservatory of Music, will give her graduation recital at the conservatory next Tuesday evening, when she will be assisted by Miss Mabelle Tennant, contralto and Mr. Gaylord Yost, violinist.

Article from the "Free Press" of Detroit, Michigan dated 19 Jul 1908:
Miss Mabel Tennant [sic], who has been studying music in Europe for the last two years, is now on her way back to this city.

Article from the "Free Press" of Detroit, Michigan dated 27 Sep 1908:
Miss Mabelle Tennant, contralto, a former pupil of Mrs. Ida F. Norton, of the Detroit Conservatory of Music, and for the last two years under Baldelli, in Paris, has returned to Detroit, and been engaged for the position of contralto soloist at the Grosse Pointe Protestant church. The other members of the choir are: Miss Jane Barber, soprano; Wm. J. Connor, tenor; Eugene Janisse, basso, and Miss Kate McDonald, organist.

Article from the "Free Press" of Detroit, Michigan dated 18 Oct 1908:
The following pupils of the Misses Kate, Emma and Charlotte McDonald, of the Detroit Conservatory of Music, gave a concert Friday evening at the conservatory hall, assisted by Miss Mabelle Tennant, contralto: Ruth Wilkinson, Sarah Dunlap, Marjory Hay, Irene McDonald. Marcella Forster, Glenn Stock, William Stone, Delphine Dodge, Marie Shelton, Harriet Harvey, Hazel Winters, Rose Kozlowski. Liela Pierce, Magdalene Lange, Jerry Masak, Myrtie E. Miller, Sarah Reno, Mrs. Hamilton, Dora Ford and Grace Gibson.

Extract from the 1920 Census:
Name: Mabelle Tennant
Age: 37
Estimated birth year: 1883
Birthplace: Michigan
Race: white
Sex: female
Relationship to head of house: daughter
Parent: Ada Tennant, age 62; widow
Home in 1920: Detroit Ward 4, Wayne, Michigan
Address: 93 Prentiss Street
Marital status: single
Able to speak English: yes
Able to read and write: yes
Father's birthplace: Canada
Mother's birthplace: Michigan
Occupation: stenographer
Industry: Hannan Estate
Salary or wage worker: wages
Census place: Detroit Ward 4, Wayne, Michigan; Roll: T625_805; Page: 8A; Enumeration District: 133; Image: 708
Date: 10 Jan 1920

Extract from U.S. City Directories 1822-1995:
Name: Mabelle Tennant
City: Detroit, Michigan
Occupation: stenographer est of W W Hannan
Spouse: none
Residence year: 1920
Publication title: Detroit, Michigan, City Directory

Extract from the 1930 Census:
Name: Mabelle Tennant
Age: 47
Estimated birth year: 1883
Birthplace: Michigan
Race: white
Sex: female
Relation to head-of-house: head
Home in 1930: Detroit, Wayne, Michigan
Address: 70 Clairmount Avenue
Marital status: single
Education: able to speak English
Education: able to read and write
Father's birthplace: Canada English
Mother's birthplace: Michigan
Rent/home value: rents; $55
Owned a radio: no
Occupation: bookkeeper
Industry: Sluch Estate
Salary or wage worker: wages
Census place: Detroit, Wayne, Michigan; Roll: 1033; Page: ; Enumeration District: 62; Image: 813.0
Date: 2 Apr 1930

Extract from the 1940 Census:
Name: Mabelle Tennant
Age: 58
Estimated birth year: 1882
Birthplace: Michigan
Race: white
Sex: female
Relation to head-of-house: head
Home in 1940: Detroit, Wayne, Michigan
Address: 70 Clairmount Street
Marital status: single
Highest grade of school completed: high school 4 years
Living on farm: no
Home owned or rented: rented
Monthly rental: $45
Place of residence in 1935: same house
Occupation: administrix
Industry: estate
Salary or wage worker: wages
Number of weeks worked in 1939: 52
Amount of money wages or salary: $2400
Has other income of more than $50: no
At work during week of March 24-30: yes
Number of hours worked: 35
Census place: Detroit, Wayne, Michigan; Roll: T627_1842; Page: 4A; Enumeration District: 84-100
Date: 23 Apr 1940

She was employed as a singer, a private teacher, and as private secretary to a wealthy woman in Grosse Pointe, Michigan. She never married.

Mabelle Tennant said that the Van Eps family in the United States went back before the Revolutionary War and that one of the Van Eps served in the Revolutionary Army, and thus the family were eligible to be in the Sons or Daughters of the Revolution.

Richard H Rhode remembers Mabelle Tennant coming to visit his Grandfather, her only living brother, Robert Hamilton Tennant, in the 1950s, when he was a child. She was in her 70s then, and the Rhode and Spicer children respectfully called her "Aunt Mabel," but were a bit afraid of her. She was a little old lady, wrinkled, and she would sit in a chair on the lawn of Grandfather's home at Pike Lake (north of Duluth, Minnesota) wrapped in a sweater in the summertime, and converse with Elizabeth Tennant Rhode and Jean Tennant Spicer, and with Grandfather. Interestingly enough, she and Grandfather both lived to age 94.

Extract from Michigan deaths, 1971-96:
Surname: Tennant
Given name: Mabelle
Initial:
Sex: female
Day of birth: 12
Month of birth: April
Year of birth: 82
Day of death: 7
Month of death: April
Year of death: 77
City of residence: Harbor Beach
County of residence: Huron
State of residence: Michigan
City of death: Harbor Beach
County of death: Huron
State of death: Michigan
Death certificate no.: 20531

Extract from Clinton Grove Cemetery in Mount Clemens, Michigan:
Name: Mabelle Tennant
Age: 94
Sex: female
Date of burial: 9 Apr 1977