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Mary Mclaughlin — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Mclaughlin across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Annie & James — first a daughter (b.~1917), then head of a 3-person household.
Age 13
b. ~1917
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | McLaughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1917 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Mclaughlin | Daughter | — | 13 | ~1917 |
| Ellen Mclaughlin | Head | — | 45 | ~1885 |
| Thomas Mclaughlin | Son | — | 14 | ~1916 |
Census Appearances
1920
Cook, Illinois
Daughter, age 2
Cook, Illinois · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLaughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 13
Cook, Illinois · implied b. ~1917 — 3 household members
| Surname | McLaughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 24
Cook-County, Illinois · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Laughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Canvasser |
| Industry | Wholesale Food Co. |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 370 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Mary Mclaughlin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Annie Mclaughlin (~0.92 confidence) and father James Mc Laughlin (~0.92 confidence) and mother Helen Mc Laughlin (~0.92 confidence) and mother Ellen Mclaughlin (~0.92 confidence) and father Patrick Mclaughlin (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Annie Mclaughlin
b. ~1881
Source mother
● Household
· direct · ~0.92
Father
James Mc Laughlin
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Helen Mc Laughlin
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Ellen Mclaughlin
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
Patrick Mclaughlin
b. ~1887
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Mclaughlin
Daughter · 1930 · age 13 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Thomas Mclaughlin
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
15 people indexed on this census page (ia:1930:illinoiscensus00reel470:0166)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ellen Mclaughlin | 45 | Head | Matron | Ireland |
| 2 | Thomas Mclaughlin | 14 | Son | — | Ireland |
| 3 | Mary Mclaughlin THIS PERSON | 13 | Daughter | — | Illinois |
| 4 | Edward Lindenman | 27 | Head | Salesman | Michigan |
| 5 | Alice Lindenman | 29 | Wife | — | Michigan |
| 6 | Edward Terrell | 31 | Head | Electrician | Newfoundland |
| 7 | Edna Terrell | 26 | Wife | Clerk | Illinois |
| 8 | Arthur Runge | 36 | Head | Foreman | Illinois |
| 9 | Lydia Runge | 32 | Wife | General Work | Illinois |
| 10 | Charles Jr. Christopherson | 41 | Head | Chauffeur | Illinois |
| 11 | Marie Christopherson | 46 | Wife | — | New York |
| 12 | Edna Christopherson | 15 | Daughter | Sales Agent | Illinois |
| 13 | Edward Bunker | 29 | Head | Sheet Metal | Illinois |
| 14 | Stella Bunker | 23 | Wife | — | Poland |
| 15 | Fred Johnson | 45 | Roomer | Steel Worker | Sweden |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)