MP
Mary Pratt — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Lac Qui Parle, Minnesota
Our Model Tree links this Mary Pratt across the 1930 and 1940 US Censuses in Lac Qui Parle, Minnesota (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 9-person household.
Age 12
b. ~1918
Female
Daughter
Born: Minnesota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Lac Qui Parle, Minnesota |
| Surname | Pratt |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Norway |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Baxter Township |
| Est. Birth Year | ~1918 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Pratt | Daughter | — | 12 | ~1918 |
| Alice Pratt | Daughter | — | 15 | ~1915 |
| Lottie Pratt | Daughter | — | 18 | ~1912 |
| Edwin Pratt | Head | — | 54 | ~1876 |
| Douglas Pratt | Son | — | 26 | ~1904 |
| Charles Pratt | Son | — | 20 | ~1910 |
| Harold Pratt | Son | — | 21 | ~1909 |
| Arthur Pratt | Son | — | 23 | ~1907 |
| Christine Pratt | Spouse | — | 47 | ~1883 |
Census Appearances
1930
Lac Qui …
Daughter, age 12
Lac Qui Parle, Minnesota · implied b. ~1918 — 9 household members
| Surname | Pratt |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Lac-Qui-Parle-County, Minnesota
Other, age 21
Lac-Qui-Parle-County, Minnesota · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pratt |
| Given Name | Mavis |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lac qui Parle |
| Occupation | Teacher |
| Industry | Rural School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 450 |
| Highest Grade | C 1 |
| 1935 Residence | Minnesota |
| 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 Pratt across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Pratt
Daughter · 1930 · age 12 · b. ~1918 · Minnesota
★ You are viewing this record
Sibling
Douglas Pratt
Sibling · 1930 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Pratt
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lottie Pratt
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Pratt
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Pratt
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Pratt
Sibling · 1930 · age 21
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 — Lac Qui Parle, Minnesota
Open full size
1930 US Federal Census — Lac Qui Parle, Minnesota
Page Contents
50 people indexed on this census page (ia:1930:minnesotacensus00reel1103:0830)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Husby | 42 | Wife | — | Norway |
| 2 | Oscar Husby | 22 | Son | Farm Laborer | Minnesota |
| 3 | Alfred U Husby | 16 | Son | Farm Laborer | Minnesota |
| 4 | Hazel Husby | 13 | Daughter | — | Minnesota |
| 5 | Trygve Stroma | 48 | Head | Farmer | Minnesota |
| 6 | Olaf Stroma | 16 | Son | Farm Laborer | Minnesota |
| 7 | Jean Stroma | 15 | Daughter | — | Minnesota |
| 8 | Jacob Foss | 45 | Head | Farmer | Minnesota |
| 9 | Inga Foss | 42 | Wife | — | Minnesota |
| 10 | Maynard Foss | 3 | Son | — | Minnesota |
| 11 | Oscar J Siverson | 46 | Head | Farmer | Minnesota |
| 12 | Julia J Siverson | 45 | Wife | — | Minnesota |
| 13 | John S Siverson | 16 | Son | Farm Laborer | Minnesota |
| 14 | Mildred A Siverson | 15 | Daughter | — | Minnesota |
| 15 | Sivert Berg | 42 | Head | Farmer | Norway |
| 16 | Sarah Berg | 42 | Wife | — | Minnesota |
| 17 | Sivert Berg | 12 | Son | — | Minnesota |
| 18 | Joyce Berg | 5 | Daughter | — | Minnesota |
| 19 | Arthur R Berg | 1 | Son | — | Minnesota |
| 20 | Sivert John | 71 | Father | Farm Laborer | Norway |
| 21 | John Lonnest | 45 | Head | Farmer | Germany |
| 22 | Minnie Lonnest | 36 | Wife | — | Minnesota |
| 23 | Helen Lonnest | 18 | Daughter | Housework | South Dakota |
| 24 | John Lonnest | 15 | Son | Farm Laborer | South Dakota |
| 25 | Leo Lonnest | 13 | Son | — | South Dakota |
| 26 | Marie Lonnest | 10 | Daughter | — | Minnesota |
| 27 | Benjamin Voss | 41 | Head | Farmer | Germany |
| 28 | Ida M Voss | 37 | Wife | — | Minnesota |
| 29 | Robert Voss | 2 | Son | — | Minnesota |
| 30 | Arthur Voss | 1 | Son | — | Minnesota |
| 31 | Ole Morking | 67 | Head | Farmer | Norway |
| 32 | Anna Morking | 62 | Wife | — | Norway |
| 33 | Oscar Morking | 33 | Son | Farm Laborer | Minnesota |
| 34 | Edwin H Pratt | 54 | Head | Farmer | Minnesota |
| 35 | Christine Pratt | 47 | Wife | — | Norway |
| 36 | Douglas Pratt | 26 | Son | Farm Laborer | South Dakota |
| 37 | Arthur W Pratt | 23 | Son | Farm Laborer | Oregon |
| 38 | Harold Pratt | 21 | Son | Farm Laborer | Oregon |
| 39 | Charles Pratt | 20 | Son | Farm Laborer | Oregon |
| 40 | Lottie L Pratt | 18 | Daughter | Housework | Minnesota |
| 41 | Alice D Pratt | 15 | Daughter | — | Minnesota |
| 42 | Mary Pratt THIS PERSON | 12 | Daughter | — | Minnesota |
| 43 | Olaf Mork | 57 | Head | Farmer | Minnesota |
| 44 | Emily Mork | 49 | Wife | — | Minnesota |
| 45 | Olaf Mork | 20 | Son | Farm Laborer | Minnesota |
| 46 | Palmer Mork | 14 | Son | Farm Laborer | Minnesota |
| 47 | Luella W Mork | 11 | Daughter | — | Minnesota |
| 48 | Mildred L Mork | 7 | Daughter | — | Minnesota |
| 49 | Vanda M Mork | 4 | Daughter | — | Minnesota |
| 50 | Gustav Dahl | 33 | Head | Carpenter | Minnesota |
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)