MK
Mary Kennedy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hennepin-County, Minnesota
Our Model Tree links this Mary Kennedy across the 1920, 1930 and 1940 US Censuses in Hennepin-County, Minnesota (XGBoost, ~Confirmed), with identified parents Martin & Isabelle — first a daughter (b.~1914), then head of a 10-person household.
Age 26
b. ~1914
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hennepin-County, Minnesota |
| Surname | Kennedy |
| Given Name | Mary I. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Minneapolis City |
| 1935 Residence (County) | Hennepin |
| Additional Details | |
| Occupation | librarian clerical |
| Industry | University |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 144 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Librarian Clerical |
| Township / Ward | Minneapolis City |
| Est. Birth Year | ~1914 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Agnes Kennedy | Daughter | — | 20 | ~1920 |
| Mary Kennedy | Daughter | — | 26 | ~1914 |
| Elinor Kennedy | Daughter | — | 23 | ~1917 |
| Bernadette Kennedy | Daughter | — | 11 | ~1929 |
| Cloetta Kennedy | Head | — | 51 | ~1889 |
| Isabelle Regan | Other | — | 79 | ~1861 |
| Bernadette Regan | Other | — | 52 | ~1888 |
| Martin Kennedy | Son | — | 25 | ~1915 |
| John Kennedy | Son | — | 18 | ~1922 |
| Isabelle Kennedy | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Hennepin, Minnesota
Daughter, age 6
Hennepin, Minnesota · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Mary Isabelle |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Hennepin, Minnesota
Daughter, age 16
Hennepin, Minnesota · implied b. ~1914 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Hennepin-County, Minnesota
Daughter, age 26
Hennepin-County, Minnesota · implied b. ~1914 — 10 household members
| Surname | Kennedy |
| Given Name | Mary I. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Minneapolis City |
| 1935 Residence (County) | Hennepin |
| Occupation | librarian clerical |
| Industry | University |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 144 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Kennedy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Kennedy (~0.92 confidence) and mother Isabelle Kennedy (~0.92 confidence) and mother Cloetta Kennedy (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Kennedy
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Isabelle Kennedy
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Cloetta Kennedy
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Kennedy
Daughter · 1940 · age 26 · b. ~1914 · Minnesota
★ You are viewing this record
Sibling
Agnes Kennedy
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elinor Kennedy
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Kennedy
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kennedy
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernadette Kennedy
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Hennepin-County, Minnesota
Open full size
1940 US Federal Census — Hennepin-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01984-00278)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alga Swanby | 46 | wife | Maid Duty | Wisconsin |
| 2 | Harland Swanby | 15 | son | None | Minnesota |
| 3 | Alice B. Hamilton | 76 | Head | None | Minnesota |
| 4 | Ruth E. Hamilton | 51 | daughter | Hygienist | Minnesota |
| 5 | Minnie C. Mcclelland | 57 | lodger | Proofreader | Minnesota |
| 6 | Margaret Wittman | 19 | lodger | Secretary | Minnesota |
| 7 | Rasmus Meland | 70 | Head | None | Minnesota |
| 8 | Dena M. Meland | 70 | Wife | None | Iowa |
| 9 | Marie Meland | 38 | daughter | Stenographer | Minnesota |
| 10 | Grace Williams | 49 | Head | Switchboard Operator | Illinois |
| 11 | Richard Kea | 76 | Head | None | England |
| 12 | Anna Kea | 72 | wife | None | Iowa |
| 13 | Walter Urbay | 47 | Head | Traveling Salesman | Minnesota |
| 14 | Helen Urbay | 47 | wife | Saleslady | Wisconsin |
| 15 | William Whalen | 30 | lodger | Artist | Illinois |
| 16 | Evelyn Gruchow | 25 | lodger | Telephone Operator | Minnesota |
| 17 | Max H. Grosse | 83 | Head | None | Germany |
| 18 | Paul Grosse | 77 | brother | None | Germany |
| 19 | Ethel Grosse | 45 | daughter in law | Housekeeper | Minnesota |
| 20 | Estelle Engold | 58 | Head | Secretary | Wisconsin |
| 21 | Frances Mathews | 50 | lodger | None | Wisconsin |
| 22 | William R. Sprague | 65 | Head | Salesman | Maine |
| 23 | Minnie G. Sprague | 67 | wife | None | Maine |
| 24 | Edward F. Yates | 59 | lodger | Salesman | Minnesota |
| 25 | Cloetta Kennedy | 51 | Head | Salesman | Minnesota |
| 26 | Isabelle Kennedy | 50 | wife | None | Minnesota |
| 27 | Mary I. Kennedy THIS PERSON | 26 | daughter | Librarian Clerical | Minnesota |
| 28 | Martin Jr. Kennedy | 25 | son | Accountant | Minnesota |
| 29 | Elinor Kennedy | 23 | daughter | Filing | Minnesota |
| 30 | Agnes Kennedy | 20 | daughter | None | Minnesota |
| 31 | John Kennedy | 18 | son | Stenographer | Minnesota |
| 32 | Bernadette Kennedy | 11 | daughter | None | Minnesota |
| 33 | Isabelle Regan | 79 | mother in law | None | Kentucky |
| 34 | Bernadette Regan | 52 | sister in law | Accounting | Minnesota |
| 35 | Tracy Hammond | 56 | Head | Floor Manager | Kansas |
| 36 | Gertrude Hammond | 55 | Wife | None | Indiana |
| 37 | Grace Hammond | 31 | daughter | Billing Clerk | Kansas |
| 38 | Gene Hammond | 21 | Son | Grocery Clerk | Kansas |
| 39 | Alice Hammond | 19 | daughter | New Worker | Nebraska |
| 40 | Aratio Beech | 70 | Head | Tailor Cutter | England |
Pedigree Summary
Mary + 5 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)