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Mary Mcnamara — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hennepin-County, Minnesota
Our Model Tree links this Mary Mcnamara across the 1930 and 1940 US Censuses in Hennepin-County, Minnesota (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 7-person household.
Age 17
b. ~1923
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hennepin-County, Minnesota |
| Surname | McNamara |
| Given Name | Mary S. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Minneapolis City |
| 1935 Residence (County) | Hennepin |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Minneapolis City |
| Est. Birth Year | ~1923 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ellen Mcnamara | Daughter | — | 19 | ~1921 |
| Margaret Mcnamara | Daughter | — | 15 | ~1925 |
| Mary Mcnamara | Daughter | — | 17 | ~1923 |
| Michael Mcnamara | Head | — | 54 | ~1886 |
| Matthew Mcnamara | Son | — | 14 | ~1926 |
| Michael Mcnamara | Son | — | 22 | ~1918 |
| Mary Mcnamara | Spouse | — | 54 | ~1886 |
Census Appearances
1930
Hennepin, Minnesota
Daughter, age 6
Hennepin, Minnesota · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | Margaret E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Hennepin-County, Minnesota
Daughter, age 17
Hennepin-County, Minnesota · implied b. ~1923 — 7 household members
| Surname | McNamara |
| Given Name | Mary S. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Minneapolis City |
| 1935 Residence (County) | Hennepin |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H-3 |
| 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 Mcnamara across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcnamara
Daughter · 1940 · age 17 · b. ~1923 · Minnesota
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Sibling
Matthew Mcnamara
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Mcnamara
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Mcnamara
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mcnamara
Sibling · 1940 · age 15
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-t0627-01984-00035)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anton J. Birkel | 74 | Head | Lodging House | Illinois |
| 42 | Sara L. Birkel | 59 | Wife | — | Illinois |
| 43 | Amelia Shandley | 72 | Lodger | — | Minnesota |
| 44 | Lena L. Christianson | 70 | Lodger | — | Minnesota |
| 45 | Emil Hult | 44 | Lodger | Machinist | Sweden |
| 46 | Vince T. Stoltenberg | 23 | Lodger | Machinist | Minnesota |
| 47 | Wayne Burgum | 22 | Lodger | Bookkeeper | N. Dak. |
| 48 | Clair W. Pivitt | Pruitt | 19 | Lodger | — | Wisconsin |
| 49 | Charles S. Welch | 60 | Head | Office Mgr. | Illinois |
| 50 | Mayme M. Welch | 58 | Wife | — | Illinois |
| 51 | George D. Wilson | 73 | Head | — | Scotland |
| 52 | Ida S. Schneider | 54 | Head | — | N. Dak. |
| 53 | Louis Bohnsack | 53 | Lodger | Clerk | N. Dak. |
| 54 | George Prior | 45 | Lodger | Caretaker | England |
| 55 | Irvin Shrapp | 27 | Lodger | Stretcher | Minnesota |
| 56 | Gilbert Schmidt | 29 | Lodger | Chauffeur | Minnesota |
| 57 | Sigurd Magnuson | 23 | Lodger | Mechanic | Minnesota |
| 58 | Louis H. Brown | 67 | Head | — | Ohio |
| 59 | Irma Moorhead | 45 | Daughter | — | Illinois |
| 60 | Milo J. Phillips | 76 | Lodger | — | Wisconsin |
| 61 | George A. Peterson | 48 | Lodger | Salesman | Minnesota |
| 62 | Robert L. Hedenberg | Helvenberg | 42 | Lodger | Salesman | Minnesota |
| 63 | Michael F. Mcnamara | 54 | Head | Accountant | Minnesota |
| 64 | Mary Mcnamara | 54 | Wife | — | Minnesota |
| 65 | Michael J. Mcnamara | 22 | Son | Clerk | Minnesota |
| 66 | Ellen P. Mcnamara | 19 | Daughter | New Worker | Minnesota |
| 67 | Mary S. Mcnamara THIS PERSON | 17 | Daughter | — | Minnesota |
| 68 | Margaret A. Mcnamara | 15 | Daughter | — | Minnesota |
| 69 | Matthew F. Mcnamara | 14 | Son | — | Minnesota |
| 70 | Kenneth F. Wells | 37 | Head | Insurance Broker | Minnesota |
| 71 | Mary M. Wells | 39 | Wife | — | Iowa |
| 72 | David P. Wells | 12 | Son | — | Iowa |
| 73 | Edward P. Schwartz | 36 | Head | Printer | Minnesota |
| 74 | Mabel M. Schwartz | 36 | Wife | Bookkeeper | Minnesota |
| 75 | Betty J. Schwartz | 10 | Daughter | — | Minnesota |
| 76 | Hattie Rice | 37 | Servant | Housework | Minnesota |
| 77 | Laura Tippy | 37 | Head | Trained Nurse | Minnesota |
| 78 | Ann Tippy | 8 | Daughter | — | Michigan |
| 79 | Lill T. Penhall | 39 | Sister | Clerical | Minnesota |
| 80 | Royal J. Hutchins | 23 | Head | Machinist | Minnesota |
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)