MS
Margaret Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Margaret Sullivan across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 6-person household.
Age 44
b. ~1896
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Munhall Borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Munhall Borough |
| Est. Birth Year | ~1896 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Sullivan | Daughter | — | 21 | ~1919 |
| Mary Sullivan | Daughter | — | 16 | ~1924 |
| Lawrence Sullivan | Head | — | 47 | ~1893 |
| Lawrence Sullivan | Son | — | 25 | ~1915 |
| Roger Sullivan | Son | — | 23 | ~1917 |
| Margaret Sullivan | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 23
Allegheny, Pennsylvania · implied b. ~1897 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Clerk |
| Industry | Advertising Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Other, age 34
Allegheny, Pennsylvania · implied b. ~1896 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Margaret G. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 20 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Spouse, age 44
Allegheny-County, Pennsylvania · implied b. ~1896 — 6 household members
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Munhall Borough |
| 1935 Residence (County) | Allegheny |
| Industry | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Sullivan 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 Sullivan
Spouse · 1940 · age 44 · b. ~1896 · 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03412-00510)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Karch | 56 | Head | Shearman | Slovak |
| 2 | Anna Karch | 48 | Wife | — | Pennsylvania |
| 3 | Albert Karch | 27 | Son | Recorder | Pennsylvania |
| 4 | Lillian Karch | 25 | Daughter | Saleswoman | Pennsylvania |
| 5 | Joseph Karch | 22 | Son | Coil Winder | Pennsylvania |
| 6 | Wilhemina Karch | 17 | Daughter | — | Pennsylvania |
| 7 | Connie Sivera | 64 | Head | — | Slovak |
| 8 | Joseph Sivera | 40 | Son | Labor | Slovak |
| 9 | Anthony Sivera | 33 | Son | Machine Helper | Pennsylvania |
| 10 | Theresa Sivera | 15 | Daughter | — | Pennsylvania |
| 11 | Lawrence Sullivan | 47 | Head | Roller | Pennsylvania |
| 12 | Margaret Sullivan THIS PERSON | 44 | Wife | — | Pennsylvania |
| 13 | Lawrence Sullivan | 25 | Son | Labor | Pennsylvania |
| 14 | Roger Sullivan | 23 | Son | Messenger Boy | Pennsylvania |
| 15 | Margaret Sullivan | 21 | Daughter | Sales Lady | Pennsylvania |
| 16 | Mary Louise Sullivan | 16 | Daughter | — | Pennsylvania |
| 17 | John Jones | 50 | Head | Hot Saw | Wales |
| 18 | Matilda Jones | 52 | Wife | — | Pennsylvania |
| 19 | Virginia Jones | 25 | Daughter | Stenographer | Pennsylvania |
| 20 | Jean Jones | 24 | Daughter | Clerical | Pennsylvania |
| 21 | David Jones | 21 | Son | Bookkeeper | Pennsylvania |
| 22 | William Jones | 19 | Son | Laborer | Pennsylvania |
| 23 | Thomas King | 49 | Head | Foreman | Pennsylvania |
| 24 | Gertrude King | 47 | Wife | — | Pennsylvania |
| 25 | Elizabeth King | 22 | Daughter | Stenographer | Pennsylvania |
| 26 | Anna King | 11 | Daughter | — | Pennsylvania |
| 27 | Irene Maroney | 53 | Head | — | Pennsylvania |
| 28 | Ruth Maroney | 20 | Daughter | New Worker | Pennsylvania |
| 29 | Jean Maroney | 17 | Daughter | — | Pennsylvania |
| 30 | Andrew Hugh | 47 | Head | Scaleman | England |
| 31 | Anna Hugh | 47 | Wife | — | Pennsylvania |
| 32 | William Hugh | 22 | Son | Apprentice | Pennsylvania |
| 33 | Robert Hugh | 17 | Son | — | Pennsylvania |
| 34 | John Fuhrman | 49 | Head | — | Pennsylvania |
| 35 | Marcella Fuhrman | 35 | Wife | — | Pennsylvania |
| 36 | Ruth Marie Fuhrman | 10 | Daughter | — | Pennsylvania |
| 37 | Albert Bevan | 51 | Head | Charger | Wales |
| 38 | Sue Bevan | 48 | Wife | — | Pennsylvania |
| 39 | Arthur Young | 51 | Brother-in-law | Electrician | Pennsylvania |
| 40 | Alex Walker | 45 | Head | Laborer | 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)