MP
Mary Pratt — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hillsborough-County, New Hampshire
Our Model Tree links this Mary Pratt across the 1930 and 1940 US Censuses in Hillsborough-County, New Hampshire (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Female
Daughter
Born: New Hampshire
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hillsborough-County, New Hampshire |
| Surname | Pratt |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Manchester City |
| 1935 Residence (County) | Hillsboro |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Yes 5 |
| 1935 Residence | Same house |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Township / Ward | Manchester City |
| Est. Birth Year | ~1929 |
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 |
|---|---|---|---|---|
| Evelyn Pratt | Daughter | — | 13 | ~1927 |
| William Pratt | Daughter | — | 10 | ~1930 |
| Mary Pratt | Daughter | — | 11 | ~1929 |
| Louis Pratt | Head | — | 45 | ~1895 |
| Louis Pratt | Son | — | 17 | ~1923 |
| Harold Pratt | Son | — | 16 | ~1924 |
| Margaret Pratt | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Hillsborough, New …
Daughter, age 1
Hillsborough, New Hampshire · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pratt |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Hillsborough-County, New …
Daughter, age 11
Hillsborough-County, New Hampshire · implied b. ~1929 — 7 household members
| Surname | Pratt |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Manchester City |
| 1935 Residence (County) | Hillsboro |
| Income (1939) | 0 |
| Highest Grade | Yes 5 |
| 1935 Residence | Same house |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 · 1940 · age 11 · b. ~1929 · New Hampshire
★ You are viewing this record
Sibling
Harold Pratt
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louis Pratt
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Pratt
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Pratt
Sibling · 1940 · age 10
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 — Hillsborough-County, New Hampshire
Open full size
1940 US Federal Census — Hillsborough-County, New Hampshire
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02292-00549)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret Oudens | 64 | Head | Tobacco Stripper | Belgium |
| 2 | — | None | — | — | — |
| 3 | Arthur E. Card | 65 | Head | — | Canada English |
| 4 | Annie E. Card | 64 | Wife | — | New Hampshire |
| 5 | Albert G. Card | 24 | Son | Clerk | New Hampshire |
| 6 | Gustave Kobch | 53 | Head | Private Policeman | Germany |
| 7 | Clara Kobch | 51 | Wife | — | Germany |
| 8 | Schina Thibodeau | 76 | Head | — | New York |
| 9 | Cordelia Thibodeau | 55 | Daughter | — | New Hampshire |
| 10 | Lena Hallaran | 52 | Daughter | Clerical | New Hampshire |
| 11 | Joseph G. Thibodeau | 42 | Head | Shoe Worker | New Hampshire |
| 12 | Florence T. Thibodeau | 40 | Wife | Housework | New Hampshire |
| 13 | Ethel T. Thibodeau | 8 | Daughter | — | New Hampshire |
| 14 | Louis Pratt | 45 | Head | Tool Repairer | New Hampshire |
| 15 | Margaret H. Pratt | 48 | Wife | — | England |
| 16 | Louis Jr. Pratt | 17 | Son | New Worker | New Hampshire |
| 17 | Harold Pratt | 16 | Son | New Worker | New Hampshire |
| 18 | Evelyn T. Pratt | 13 | Daughter | — | New Hampshire |
| 19 | Mary Pratt THIS PERSON | 11 | Daughter | — | New Hampshire |
| 20 | William Pratt | 10 | Daughter | — | New Hampshire |
| 21 | Gertrude Glatzer | 42 | Head | Hairdresser | New Hampshire |
| 22 | Herman Glatzer | 40 | Brother | Shoe Worker | Germany |
| 23 | Alfred J. Ouellette | 32 | Head | Shoe Worker | New Hampshire |
| 24 | Edna M. Ouellette | 33 | Wife | Stenographer | New Hampshire |
| 25 | Charles R. Leckie | 58 | Head | Salesman-Agent | New Hampshire |
| 26 | Annie F. Leckie | 64 | Wife | Bookkeeper | New Hampshire |
| 27 | Rita P. Peck | 55 | Head | Nursing-Clerical | New Hampshire |
| 28 | Elizabeth Newton | 51 | Sister | Clerk | New Hampshire |
| 29 | Gustave F. Wenzel | 70 | Head | — | Germany |
| 30 | Curt G. Wenzel | 27 | Son | Musician | New Hampshire |
| 31 | Elizabeth Wenzel | 21 | Daughter | — | New Hampshire |
| 32 | Curt G. Jr. Wenzel | 2 | Son | — | New Hampshire |
| 33 | Annie Joyce | 70 | Head | — | New Hampshire |
| 34 | — | None | — | — | — |
| 35 | John G. Welpley | 72 | Head | Proprietor | New Hampshire |
| 36 | Signe E. Welpley | 55 | Wife | — | Sweden |
| 37 | Mildred Welpley | 31 | Daughter | — | New Hampshire |
| 38 | James Sr. Burns | 51 | Head | Foreman | New Hampshire |
| 39 | Lillian M. Burns | 49 | Wife | — | New Hampshire |
| 40 | James Jr. Burns | 29 | Son | Collector | New Hampshire |
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)