MP
Mary Pollock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ward-County, North Dakota
Our Model Tree links this Mary Pollock across the 1930 and 1940 US Censuses in Ward-County, North Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 6-person household.
Age 49
b. ~1891
Female
Spouse
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ward-County, North Dakota |
| Surname | Pollock |
| Given Name | Mary V. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Vang Township |
| 1935 Residence (County) | Ward |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Vang Township |
| Est. Birth Year | ~1891 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Harold Pollock | Son | — | 23 | ~1917 |
| Tom Pollock | Head | — | 64 | ~1876 |
| Marian Pollock | Daughter | — | 11 | ~1929 |
| Mary Pollock | Spouse | — | 49 | ~1891 |
| Iva Pollock | Daughter | — | 13 | ~1927 |
| Alonzo Pollock | Son | — | 24 | ~1916 |
Census Appearances
1930
Ward, North …
Other, age 39
Ward, North Dakota · implied b. ~1891 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pollock |
| Given Name | Mary T. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 22 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Ward-County, North …
Spouse, age 49
Ward-County, North Dakota · implied b. ~1891 — 6 household members
| Surname | Pollock |
| Given Name | Mary V. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Vang Township |
| 1935 Residence (County) | Ward |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Pollock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Pollock
Spouse · 1940 · age 49 · b. ~1891 · North Dakota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Ward-County, North Dakota
Open full size
1940 US Federal Census — Ward-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03017-01064)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis L. Rubbelke | 27 | Head | Farmer | North Dakota |
| 42 | Edward J. Rubbelke | 22 | Son | Farmer | North Dakota |
| 43 | Eugene C. Rubbelke | 18 | Son | Farmer | North Dakota |
| 44 | Louis A. Mab. Rubbelke | 16 | Son | — | North Dakota |
| 45 | Halvor Leifson | 55 | Head | Farmer | Minnesota |
| 46 | Ina M. Leifson | 40 | Wife | — | Minnesota |
| 47 | Norman H. Leifson | 22 | Son | Farmer | North Dakota |
| 48 | Lyle L. Leifson | 16 | Son | Farmer | North Dakota |
| 49 | Ole Hauger | 64 | Head | Farmer | Norway |
| 50 | Dorthea Hauger | 61 | Wife | — | Norway |
| 51 | Olaf N. Hauger | 22 | Son | — | North Dakota |
| 52 | Bert Olson | 64 | Head | Farmer | Norway |
| 53 | Lewis Olson | 61 | Head | Farmer | Norway |
| 54 | Ernest Morris | 63 | Partner | Farmer | Canada English |
| 55 | Tom H. Pollock | 64 | Head | Farmer | Indiana |
| 56 | Mary V. Pollock THIS PERSON | 49 | Wife | — | Indiana |
| 57 | Alonzo B. Pollock | 24 | Son | Farmer | North Dakota |
| 58 | Harold L. Pollock | 23 | Son | Farmer | North Dakota |
| 59 | Iva M. Pollock | 13 | Daughter | — | North Dakota |
| 60 | Marian M. Pollock | 11 | Daughter | — | North Dakota |
| 61 | Carl H. Mock | 28 | Head | Farmer | North Dakota |
| 62 | Augusta M. Mock | 24 | Wife | — | Minnesota |
| 63 | Delores E. Mock | 2 | Daughter | — | North Dakota |
| 64 | Ernest C. Mock | 1 | Son | — | North Dakota |
| 65 | Peter Mock | 55 | Head | Farmer | Russia |
| 66 | Morena Mock | 57 | Wife | — | Russia |
| 67 | Otto A. Mock | 22 | Son | Farmer | North Dakota |
| 68 | Hazel Mock | 18 | Wife | — | North Dakota |
| 69 | Jerry A. Mock | 2 | Grandson | — | North Dakota |
| 70 | Clarence L. Endresen | 39 | Head | Farmer | Iowa |
| 71 | Inga A. Endresen | 28 | Wife | — | North Dakota |
| 72 | Duane L. Endresen | 2 | Son | — | North Dakota |
| 73 | Jacob Endresen | 73 | Head | — | Norway |
| 74 | Tilda A. Endresen | 67 | Wife | — | Illinois |
| 75 | Wallace T. Endresen | 29 | Son | — | North Dakota |
| 76 | Ole M. Iverland | 42 | Head | Farmer | Norway |
| 77 | Lillian A. Iverland | 42 | Wife | — | North Dakota |
| 78 | Betty Ann Iverland | 9 | Daughter | — | North Dakota |
| 79 | Julius Brandvold | 30 | Head | Farmer | North Dakota |
| 80 | Alice E. Brandvold | 28 | Wife | — | North Dakota |
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)