MK
Mary Kerr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Tolland-County, Connecticut
Our Model Tree links this Mary Kerr across the 1930 and 1940 US Censuses in Tolland-County, Connecticut (XGBoost, ~Confirmed) — first a spouse (b.~1876), then head of a 7-person household.
Age 64
b. ~1876
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Tolland-County, Connecticut |
| Surname | Kerr |
| Given Name | Mary B |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Rockville |
| 1935 Residence (County) | Tolland |
| Naturalization Status | Naturalized |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Rockville |
| Est. Birth Year | ~1876 |
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 |
|---|---|---|---|---|
| Mary Kerr | Spouse | — | 64 | ~1876 |
| Lawrence Kerr | Son | — | 19 | ~1921 |
| Henry Kerr | Son | — | 30 | ~1910 |
| Arthur Kerr | Son | — | 23 | ~1917 |
| Thomas Kerr | Son | — | 4 | ~1936 |
| Mildred Kerr | Daughter | — | 17 | ~1923 |
| William Kerr | Head | — | 68 | ~1872 |
Census Appearances
1930
Fairfield, Connecticut
Spouse, age 53
Fairfield, Connecticut · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kerr |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Alien |
| Year of Immigration | 1926 |
| Age at First Marriage | 24 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Tolland-County, Connecticut
Spouse, age 64
Tolland-County, Connecticut · implied b. ~1876 — 7 household members
| Surname | Kerr |
| Given Name | Mary B |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Rockville |
| 1935 Residence (County) | Tolland |
| Naturalization Status | Naturalized |
| Hours Worked | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Kerr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kerr
Spouse · 1940 · age 64 · b. ~1876 · Connecticut
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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 — Tolland-County, Connecticut
Open full size
1940 US Federal Census — Tolland-County, Connecticut
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00527-00647)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alida Spickey | 45 | Wife | — | Holland |
| 2 | Lucelle Spickey | 19 | Daughter | — | New Jersey |
| 3 | Arnold Spickey | 16 | Son | — | New Jersey |
| 4 | Teddy Spickey | 12 | Son | — | New Jersey |
| 5 | William Kerr | 68 | Head | Gardener | Scotland |
| 6 | Mary B Kerr THIS PERSON | 64 | Wife | — | Scotland |
| 7 | Henry Kerr | 30 | Son | Clerk | Connecticut |
| 8 | Lawrence Kerr | 19 | Son | Clerk | Connecticut |
| 9 | Mildred Kerr | 17 | Daughter | — | Connecticut |
| 10 | Thomas Kerr | 4 | Son | — | Connecticut |
| 11 | Arthur Kerr | 23 | Son | Milk Boy | Connecticut |
| 12 | Frank Tebuck | 44 | Head | Weaver | Connecticut |
| 13 | Mary Tebuck | 33 | Wife | Mender | Connecticut |
| 14 | Floyd Brown | 32 | Head | Assistant Foreman | Massachusetts |
| 15 | Edna Brown | 27 | Wife | — | Connecticut |
| 16 | Hugh Ballantine | 71 | Head | — | Scotland |
| 17 | Ellen Ballantine | 67 | Wife | — | Connecticut |
| 18 | Louise Sargent | 63 | Head | — | Connecticut |
| 19 | Clara Morse | 28 | Friend | — | England |
| 20 | Galen Snell | 44 | Head | Salesman | Massachusetts |
| 21 | Nora B Snell | 40 | Wife | — | Massachusetts |
| 22 | Elaine Mary Snell | 16 | Daughter | — | Massachusetts |
| 23 | Guinevere Hadolade | 46 | Head | Card Room | Ireland |
| 24 | Helen Hadolade | 37 | Wife | — | Slovakia |
| 25 | Margaret Hadolade | 16 | Daughter | — | Connecticut |
| 26 | Matthew Hadolade | 14 | Son | — | Connecticut |
| 27 | Anna Weigle | 56 | Head | Housework | New York |
| 28 | Freddie Weigle | 17 | Daughter | Twister | Connecticut |
| 29 | Frances Weigle | 14 | Daughter | — | Connecticut |
| 30 | William Weigle | 10 | Son | — | Connecticut |
| 31 | John Paul Weigle | 52 | Brother | — | New York |
| 32 | Otto Lemke | 64 | Head | Spinner | Germany |
| 33 | Annie Lemke | 67 | Wife | — | Maine |
| 34 | Clara Lemke | 38 | Daughter | Housekeeper | Connecticut |
| 35 | Francis O'Ryan | 26 | Head | Laborer | Connecticut |
| 36 | Doris O'Ryan | 23 | Wife | — | Connecticut |
| 37 | Lydia F Ames | 87 | Head | Machinist | Connecticut |
| 38 | Bertha Ames | 41 | Wife | Packing | Connecticut |
| 39 | Louise V Miller | 70 | Sister | — | Germany |
| 40 | Anna Dederig | 66 | Head | — | Germany |
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)