MC
Margaret Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Armstrong-County, Pennsylvania
Our Model Tree links this Margaret Clark across the 1920, 1930 and 1940 US Censuses in Armstrong-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 4-person household.
Age 74
b. ~1866
Female
Head
Born: England
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Armstrong-County, Pennsylvania |
| Surname | Clark |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Widowed |
| Birthplace | England |
| 1935 Residence (City) | Leechburg |
| 1935 Residence (County) | Armstrong |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth Country | England |
| Birthplace (normalized) | england |
| Township / Ward | Leechburg |
| Est. Birth Year | ~1866 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Clark | Head | — | 74 | ~1866 |
| Grace Potucek | Other | — | 23 | ~1917 |
| John Clark | Son | — | 47 | ~1893 |
| Fred Clark | Son | — | 45 | ~1895 |
Census Appearances
1920
Allegheny, Pennsylvania
Spouse, age 53
Allegheny, Pennsylvania · implied b. ~1867 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1867 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Year of Naturalization | 1886 |
| Birthplace (normalized) | england |
1930
Allegheny, Pennsylvania
Spouse, age 63
Allegheny, Pennsylvania · implied b. ~1867 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1873 |
| Age at First Marriage | 18 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Armstrong-County, Pennsylvania
Head, age 74
Armstrong-County, Pennsylvania · implied b. ~1866 — 4 household members
| Surname | Clark |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Widowed |
| Birthplace | England |
| 1935 Residence (City) | Leechburg |
| 1935 Residence (County) | Armstrong |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Clark
Head · 1940 · age 74 · b. ~1866 · Pennsylvania
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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 — Armstrong-County, Pennsylvania
Open full size
1940 US Federal Census — Armstrong-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03423-00578)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles R. Hanna | 66 | Head | — | Pennsylvania |
| 42 | Bertha Hanna | 63 | Wife | — | Pennsylvania |
| 43 | Isa Hanna | 67 | Sister | — | Pennsylvania |
| 44 | Charles Smith | 54 | Head | Laborer | Pennsylvania |
| 45 | Nettie Smith | 46 | Wife | — | Pennsylvania |
| 46 | Doris Smith | 3 | Daughter | — | Pennsylvania |
| 47 | Harold Quillen | 28 | Head | Engineer | Illinois |
| 48 | Genevieve Quillen | 27 | Wife | Stenographer | Ohio |
| 49 | Joseph S. Mcnamara | 28 | Head | Catholic Priest | Pennsylvania |
| 50 | John Maher | 45 | Priest | Catholic Priest | Pennsylvania |
| 51 | John Macburney | 34 | Head | Mechanic | Pennsylvania |
| 52 | Hazel Macburney | 32 | Wife | — | Pennsylvania |
| 53 | Robert Macburney | 6 | Son | — | Pennsylvania |
| 54 | Vernon Kilgore | 36 | Head | Clerk | Pennsylvania |
| 55 | Lillian Kilgore | 32 | Wife | — | Pennsylvania |
| 56 | Ronald Kilgore | 3 | Son | — | Pennsylvania |
| 57 | Margaret Clark THIS PERSON | 74 | Head | — | England |
| 58 | John D. Clark | 47 | Son | Roller | New York |
| 59 | Fred Clark | 45 | Son | Clerk | Pennsylvania |
| 60 | Grace Potucek | 23 | Lodger | Housework | Pennsylvania |
| 61 | Robert Pert | 66 | Head | — | Scotland |
| 62 | Charles Pert | 31 | Son | Machinist | Pennsylvania |
| 63 | Elizabeth Pert | 28 | Daughter-in-law | — | Pennsylvania |
| 64 | Robert Pert | 8 | Grandson | — | Pennsylvania |
| 65 | Marlene Pert | 1 | Granddaughter | — | Pennsylvania |
| 66 | George Hentre | 46 | Head | Roller | Pennsylvania |
| 67 | Eva Hentre | 43 | Wife | — | Pennsylvania |
| 68 | John C. Hentre | 77 | Father | — | Germany |
| 69 | John Gollaz | 25 | Head | Mechanic | Pennsylvania |
| 70 | Alice Gollaz | 24 | Wife | — | Pennsylvania |
| 71 | Kathleen Gollaz | 2 | Daughter | — | Pennsylvania |
| 72 | Raymond Lines | 35 | Head | Laborer | Pennsylvania |
| 73 | Edna Lines | 34 | Wife | — | Pennsylvania |
| 74 | Russel Lines | 12 | Son | — | Pennsylvania |
| 75 | Mary Pastirik | 56 | Head | — | Czechoslovakia |
| 76 | Joseph Pastirik | 25 | Son | Loader | Pennsylvania |
| 77 | Mario Soriaio | 28 | Son-in-law | Clerk | Pennsylvania |
| 78 | Anne Soriaio | 25 | Daughter | — | Pennsylvania |
| 79 | Robert Soriaio | 1 | Grandson | — | Pennsylvania |
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)