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Margaret Lee — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Margaret Lee across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Peter & Anna — first a spouse (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Lee |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | McKeesport City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Mckeesport City |
| Est. Birth Year | ~1910 |
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 |
|---|---|---|---|---|
| Virginia Lee | Daughter | — | 1 | ~1939 |
| John Lee | Head | — | 31 | ~1909 |
| John Lee | Son | — | 4 | ~1936 |
| Margaret Lee | Spouse | — | 30 | ~1910 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 11
Allegheny, Pennsylvania · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 20
Allegheny, Pennsylvania · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Spouse, age 30
Allegheny-County, Pennsylvania · implied b. ~1910 — 4 household members
| Surname | Lee |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | McKeesport City |
| 1935 Residence (County) | Allegheny |
| 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 Lee across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Peter Lee (~0.92 confidence) and mother Anna Lee (~0.92 confidence) and mother Emma Lee (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Peter Lee
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Anna Lee
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Emma Lee
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Lee
Spouse · 1940 · age 30 · b. ~1910 · 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
39 people indexed on this census page (nara:1940:m-t0627-03409-00279)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nicholas Vidnovich | 60 | Head | Pipe Inspector | Yugoslavia |
| 2 | Frances Vidnovich | 55 | Wife | — | Yugoslavia |
| 3 | Mathew Vidnovich | 24 | Son | Laborer | Pennsylvania |
| 4 | Anne Vidnovich | 23 | Daughter | Waitress | Pennsylvania |
| 5 | Anthony Klein | 51 | Head | Laborer | Pennsylvania |
| 6 | Mary Klein | 43 | Wife | — | Pennsylvania |
| 7 | Dorothy Klein | 21 | Daughter | — | Pennsylvania |
| 8 | William Klein | 17 | Son | — | Pennsylvania |
| 9 | Audrey Klein | 6 | Daughter | — | Pennsylvania |
| 10 | Thomas Sveclinsky | 30 | Head | Laborer | Pennsylvania |
| 11 | Amelia Sveclinsky | 28 | Wife | — | Pennsylvania |
| 12 | Marilyn Sveclinsky | 8 | Daughter | — | Pennsylvania |
| 13 | Helen Swanson | 38 | Head | — | Pennsylvania |
| 14 | William Swanson | 17 | Son | — | Pennsylvania |
| 15 | Theodore Swanson | 12 | Son | — | Pennsylvania |
| 16 | Andrew Pthala | 53 | Head | Laborer | Poland |
| 17 | Caroline Pthala | 46 | Wife | — | Poland |
| 18 | Helen Pthala | 19 | Daughter | — | Pennsylvania |
| 19 | Irene Pthala | 17 | Daughter | — | Pennsylvania |
| 20 | Howard Byerly | 54 | Head | Elec. Tractor Operator | Pennsylvania |
| 21 | Hazel Byerly | 40 | Wife | — | Pennsylvania |
| 22 | Violet Byerly | 18 | Daughter | Instructor | Pennsylvania |
| 23 | John Lee | 31 | Head | Craneman | Pennsylvania |
| 24 | Margaret Lee THIS PERSON | 30 | Wife | — | Pennsylvania |
| 25 | John Jr. Lee | 4 | Son | — | Pennsylvania |
| 26 | Virginia Lee | 1 | Daughter | — | Pennsylvania |
| 27 | Andrew Bruce | 51 | Head | Painter | Pennsylvania |
| 28 | Mary Bruce | 45 | Wife | — | Pennsylvania |
| 29 | George Bruce | 23 | Son | Laborer | Pennsylvania |
| 30 | Edward Bruce | 16 | Son | — | Pennsylvania |
| 31 | Earl Byerly | 32 | Head | Craneman | Pennsylvania |
| 32 | Smila Byerly | 29 | Wife | — | Pennsylvania |
| 33 | Marilyn J. Byerly | 10 | Daughter | — | Pennsylvania |
| 34 | Wayne H. Byerly | 7 | Son | — | Pennsylvania |
| 35 | Charles Tice | 42 | Head | Generator Man | Maryland |
| 36 | Edith Tice | 42 | Wife | — | Pennsylvania |
| 37 | Jean Tice | 17 | Daughter | — | Pennsylvania |
| 38 | Edith Tice | 15 | Daughter | — | Pennsylvania |
| 39 | John Tice | 11 | Son | — | Pennsylvania |
Related Census Records
Pedigree Summary
Margaret
Gen 1 · 3 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)