MJ
Margaret Jackson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Margaret Jackson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents David & Clarence — first a daughter (b.~1918), then head of a 2-person household.
Age 22
b. ~1918
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Jackson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mt. Lebanon |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Elementary teacher |
| Industry | Junior High School |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1200 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Elementary Teacher |
| Township / Ward | Mt Lebanon |
| Est. Birth Year | ~1918 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Jackson | Daughter | — | 22 | ~1918 |
| Ida Jackson | Head | — | 41 | ~1899 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 3
Allegheny, Pennsylvania · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 13
Allegheny, Pennsylvania · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 22
Allegheny-County, Pennsylvania · implied b. ~1918 — 2 household members
| Surname | Jackson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mt. Lebanon |
| 1935 Residence (County) | Allegheny |
| Occupation | Elementary teacher |
| Industry | Junior High School |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1200 |
| Highest Grade | C 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 Jackson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David Jackson (~0.92 confidence) and father Clarence Jackson (~0.92 confidence) and mother Margaret Jackson (~0.92 confidence) and mother Ida Jackson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Jackson
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Clarence Jackson
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Margaret Jackson
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Ida Jackson
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Jackson
Daughter · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
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-t0627-03411-00491)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen Ueber | 16 | Maid | Maid | Pennsylvania |
| 42 | Geo H Pearce | 43 | Head | Mechanic | Pennsylvania |
| 43 | Anna H Pearce | 48 | Wife | — | Pennsylvania |
| 44 | Clare F Miller | 26 | Head | Secretary | Pennsylvania |
| 45 | Martha Miller | 24 | Sister | Tabulation | Pennsylvania |
| 46 | Ruth Miller | 20 | Sister | Stenographer | Pennsylvania |
| 47 | John M Alderdice | 65 | Head | Owner | Northern Ireland |
| 48 | Grace H Alderdice | 63 | Wife | — | Pennsylvania |
| 49 | Emeline Hamilton | 86 | Mother-in-law | — | Pennsylvania |
| 50 | Arthur D Giovannetti | 36 | Head | Inspector | District of Columbia |
| 51 | Thelma M Giovannetti | 35 | Wife | — | Pennsylvania |
| 52 | Thelma M Giovannetti | 11 | Daughter | — | California |
| 53 | Ida Jackson | 41 | Head | — | Pennsylvania |
| 54 | Margaret Jackson THIS PERSON | 22 | Daughter | Elementary Teacher | Pennsylvania |
| 55 | Christian Nies | 42 | Head | Government Dept | Scotland |
| 56 | Sara D Nies | 38 | Wife | — | Sweden |
| 57 | Harley Earl Nies | 6 | Son | — | Oregon |
| 58 | Louis Donald | 30 | Lodger | Teacher | Pennsylvania |
| 59 | Elizabeth Smiley | 29 | Lodger | El. Teacher | Pennsylvania |
| 60 | Anna Martha Thompson | 34 | Lodger | Phys. Ed. Teacher | Pennsylvania |
| 61 | Gustave E Gruber | 46 | Head | Local Salesman | Missouri |
| 62 | Mercy Gruber | 46 | Wife | — | Missouri |
| 63 | Marilyn Gruber | 17 | Daughter | — | Kansas |
| 64 | Henry J Du Devour | 32 | Head | Supervisor | Pennsylvania |
| 65 | Corinne Du Devour | 29 | Wife | — | Indiana |
| 66 | Henry J Jr Du Devour | 4 | Son | — | Michigan |
| 67 | Donald Theo Du Devour | 2 | Son | — | Indiana |
| 68 | Albert W Pearsall | 40 | Head | Civil Engineer | New York |
| 69 | Cora Pearsall | 40 | Wife | — | New York |
| 70 | Albert W Pearsall | 4 | Son | — | Massachusetts |
| 71 | Ada Patterson | 34 | Head | Teacher | Pennsylvania |
| 72 | Margaret Taylor | 37 | Lodger | Teacher | Pennsylvania |
| 73 | Ruth Willing | 40 | Lodger | Teacher | Pennsylvania |
| 74 | Alfred Hartmann | 47 | Head | Merchant | West Virginia |
| 75 | Mary Hartmann | 51 | Wife | — | West Virginia |
| 76 | William Hartmann | 25 | Son | Clerk | West Virginia |
| 77 | Thos W Hartmann | 20 | Son | — | Pennsylvania |
| 78 | Mary Louise Mellisher | 28 | Head | School Teacher | Ohio |
| 79 | Lola Mcculloch | 29 | Lodger | Teacher | Pennsylvania |
| 80 | Carrie Mae Shawkey | 29 | Lodger | Teacher | Pennsylvania |
Pedigree Summary
Margaret
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)