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Margaret Mcnamara — 1930 US Census Record
Model Tree available1930 United States Federal Census · Mountrail, North Dakota
Our Model Tree links this Margaret Mcnamara across the 1910, 1920 and 1930 US Censuses in Mountrail, North Dakota (XGBoost, ~Confirmed), with identified parents John & Sadie — first a daughter (b.~1910), then head of a 7-person household.
Age 20
b. ~1910
Female
Daughter
Born: North Dakota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Mountrail, North Dakota |
| Surname | McNamara |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Additional Details | |
| Occupation | Teacher |
| Industry | Rural school |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Teacher |
| Township / Ward | Wayzetta Township |
| Est. Birth Year | ~1910 |
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 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| John Mcnamara | Son | — | 18 | ~1912 |
| Sadie Mcnamara | Other | — | 54 | ~1876 |
| Margaret Mcnamara | Daughter | — | 20 | ~1910 |
| John Mcnamara | Head | — | 57 | ~1873 |
| Agatha Mcnamara | Daughter | — | 15 | ~1915 |
| Gordon Mcnamara | Son | — | 16 | ~1914 |
| Daniel Mcnamara | Son | — | 19 | ~1911 |
Census Appearances
1910
Mountrail, North …
Daughter, age
Mountrail, North Dakota · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | Margaret L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1920
Mountrail, North …
Daughter, age 10
Mountrail, North Dakota · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | Margaret L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Mountrail, North …
Daughter, age 20
Mountrail, North Dakota · implied b. ~1910 — 7 household members
| Surname | McNamara |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Occupation | Teacher |
| Industry | Rural school |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 Margaret Mcnamara across 3 US Census years (1910, 1920 and 1930) in Mountrail, North Dakota, using XGBoost record linkage. Identified parents: father John Mcnamara (~0.92 confidence) and mother Sadie Mcnamara (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Mcnamara
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Sadie Mcnamara
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Mcnamara
Daughter · 1930 · age 20 · b. ~1910 · North Dakota
★ You are viewing this record
Sibling
John Mcnamara
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agatha Mcnamara
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Mcnamara
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gordon Mcnamara
Sibling · 1930 · age 16
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
1930 US Federal Census — Mountrail, North Dakota
Open full size
1930 US Federal Census — Mountrail, North Dakota
Page Contents
38 people indexed on this census page (ia:1930:15thcensus1739unit:0797)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Signe Wafleu | 7 | Daughter | — | North Dakota |
| 52 | Nels Nesheim | 52 | Head | Farmer | Norway |
| 53 | Gunhild Nesheim | 46 | Wife-H | — | Norway |
| 54 | Aasne Nesheim | 19 | Daughter | — | North Dakota |
| 55 | Halvor Nesheim | 17 | Son | Farm Laborer | North Dakota |
| 56 | Gudrun Nesheim | 15 | Daughter | — | North Dakota |
| 57 | Ingeborg Nesheim | 13 | Daughter | — | North Dakota |
| 58 | Edward Nesheim | 9 | Son | — | North Dakota |
| 59 | Harold Nesheim | 8 | Son | — | North Dakota |
| 60 | Peter Nesheim | 4 | Son | — | North Dakota |
| 61 | Jacob Fevold | 39 | Head | Farmer | North Dakota |
| 62 | Sophie Fevold | 38 | Wife-H | — | Norway |
| 63 | Melvin Fevold | 16 | Son | — | North Dakota |
| 64 | Selmer Fevold | 14 | Son | — | North Dakota |
| 65 | Sarah Fevold | 6 | Daughter | — | North Dakota |
| 66 | Herman G. Nelson | 24 | Head | Farmer | North Dakota |
| 67 | Caroline Nelson | 64 | Mother | — | Sweden |
| 68 | Ingrid Nelson | 19 | Sister | Servant | North Dakota |
| 69 | Peter Aleret | 65 | Head | Farmer | Wisconsin |
| 70 | Elizabeth Aleret | 41 | Wife-H | — | Wisconsin |
| 71 | John P. Aleret | 0 | Son | — | North Dakota |
| 72 | Pryor Lindley | 56 | Head | Farmer | Iowa |
| 73 | Gertie Lindley | 47 | Wife-H | — | Kansas |
| 74 | Pearl Lindley | 18 | Daughter | — | North Dakota |
| 75 | Charley Lindley | 16 | Son | — | North Dakota |
| 76 | John Lindley | 8 | Son | — | North Dakota |
| 77 | John W. Mcnamara | 57 | Head | Farmer | Minnesota |
| 78 | Sadie Mcnamara | 54 | Wife-H | — | Minnesota |
| 79 | Margaret Mcnamara THIS PERSON | 20 | Daughter | Teacher | North Dakota |
| 80 | Daniel Mcnamara | 19 | Son | Farm Laborer | North Dakota |
| 81 | John A. Mcnamara | 18 | Son | Farm Laborer | North Dakota |
| 82 | Gordon Mcnamara | 16 | Son | — | North Dakota |
| 83 | Agatha Mcnamara | 15 | Daughter | — | North Dakota |
| 84 | Hans Larson | 49 | Head | Farmer | Norway |
| 85 | Mary Larson | 49 | Wife-H | — | Norway |
| 86 | Kermit Larson | 14 | Son | — | North Dakota |
| 87 | Mildred Larson | 10 | Daughter | — | North Dakota |
| 88 | Alfred Foss | 29 | Head | Laborer | North Dakota |
Pedigree Summary
Margaret + 4 siblings
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)