MN
Margaret Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Margaret Nelson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1878), then head of a 5-person household.
Age 62
b. ~1878
Female
Spouse
Born: Connecticut
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Nelson |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Connecticut |
| 1935 Residence (City) | Carnegie |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
| Township / Ward | Carnegie |
| Est. Birth Year | ~1878 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Mary Nelson | Daughter | — | 28 | ~1912 |
| Joseph Nelson | Head | — | 64 | ~1876 |
| Frank Nelson | Son | — | 21 | ~1919 |
| Walter Nelson | Son | — | 26 | ~1914 |
| Margaret Nelson | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Allegheny, Pennsylvania
Spouse, age 42
Allegheny, Pennsylvania · implied b. ~1878 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Margaret C. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Connecticut |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1930
Allegheny, Pennsylvania
Spouse, age 52
Allegheny, Pennsylvania · implied b. ~1878 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Margaret C. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Connecticut |
| Age at First Marriage | 18 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Northern Ireland |
| Can Read/Write | Yes |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1940
Allegheny-County, Pennsylvania
Spouse, age 62
Allegheny-County, Pennsylvania · implied b. ~1878 — 5 household members
| Surname | Nelson |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Connecticut |
| 1935 Residence (City) | Carnegie |
| 1935 Residence (County) | Allegheny |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
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 Nelson 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 Nelson
Spouse · 1940 · age 62 · b. ~1878 · 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-t0627-03399-00548)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Angeline Saporito | 34 | Wife | — | Pennsylvania |
| 2 | James Saporito | 17 | Son | Laborer | Pennsylvania |
| 3 | Carl Saporito | 15 | Son | — | Pennsylvania |
| 4 | Isabella Scotti | 15 | Daughter | — | Pennsylvania |
| 5 | Margaret Scotti | 9 | Daughter | — | Pennsylvania |
| 6 | Dolores Saporito | 7 | Daughter | — | Pennsylvania |
| 7 | Elizabeth Mullaney | 37 | Head | — | Pennsylvania |
| 8 | Betty Mullaney | 16 | Daughter | — | Pennsylvania |
| 9 | Paul Mullaney | 14 | Son | — | Pennsylvania |
| 10 | James Mullaney | 12 | Son | — | Pennsylvania |
| 11 | Vincent Snyder | 41 | Lodger | Painter | Pennsylvania |
| 12 | Harriet Gregg | 66 | Head | — | Pennsylvania |
| 13 | Sarah Gregg | 64 | Sister | — | Pennsylvania |
| 14 | Howard Gregg | 54 | Brother | Laborer | Pennsylvania |
| 15 | Dorothy Gregg | 28 | Niece | Saleslady | Pennsylvania |
| 16 | Paul Gregg | 19 | Nephew | — | Pennsylvania |
| 17 | Helen Gregg | 11 | Niece | — | Pennsylvania |
| 18 | Margaret King | 67 | Head | Proprietor | Pennsylvania |
| 19 | Catherine King | 61 | Sister | — | Pennsylvania |
| 20 | Joseph Nelson | 64 | Head | Labourer | Pennsylvania |
| 21 | Margaret Nelson THIS PERSON | 62 | Wife | — | Connecticut |
| 22 | Mary Nelson | 28 | Daughter | — | Pennsylvania |
| 23 | Walter Nelson | 26 | Son | — | Pennsylvania |
| 24 | Frank Nelson | 21 | Son | Delivery Boy | Pennsylvania |
| 25 | Michael Charley | 58 | Head | — | Syria |
| 26 | Jennie Charley | 57 | Wife | — | Syria |
| 27 | Charles Charley | 26 | Son | Laborer | Pennsylvania |
| 28 | David Charley | 19 | Son | New Worker | Pennsylvania |
| 29 | William Charley | 15 | Son | — | Pennsylvania |
| 30 | Harry Charley | 14 | Son | — | Pennsylvania |
| 31 | Dolores Charley | 9 | Daughter | — | Pennsylvania |
| 32 | Edward Charley | 8 | Son | — | Pennsylvania |
| 33 | Mary Lloyds | 76 | Head | — | Free State |
| 34 | William Reed | 30 | Head | Bottler | Pennsylvania |
| 35 | Nora Reed | 26 | Wife | — | Pennsylvania |
| 36 | Irene Bowland | 43 | Head | Barmaid | Pennsylvania |
| 37 | William Davies | 65 | Head | — | Pennsylvania |
| 38 | Sophie Davies | 60 | Wife | — | Pennsylvania |
| 39 | William Davies | 21 | Son | Attendant | Pennsylvania |
| 40 | Wayne Davies | 18 | Son | New Worker | 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)