RM
Robert Mclean — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Robert Mclean across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | McLean |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1926 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Francis Mclean | Son | — | 20 | ~1920 |
| John Mclean | Son | — | 22 | ~1918 |
| Giles Mclean | Son | — | 9 | ~1931 |
| Robert Mclean | Son | — | 14 | ~1926 |
| Alice Mclean | Spouse | — | 43 | ~1897 |
| Jerome Mclean | Son | — | 16 | ~1924 |
| Francis Mclean | Head | — | 48 | ~1892 |
Census Appearances
1930
Cook, Illinois
Son, age 4
Cook, Illinois · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLean |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 14
Cook-County, Illinois · implied b. ~1926 — 7 household members
| Surname | McLean |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | No 8 |
| 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 Robert Mclean across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Mclean
Son · 1940 · age 14 · b. ~1926 · Illinois
★ You are viewing this record
Sibling
John Mclean
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerome Mclean
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Giles Mclean
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Mclean
Sibling · 1940 · age 20
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
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00989-00593)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herbert Buelow | 27 | Son | Keeper | Illinois |
| 2 | Lois Buelow | 16 | Daughter | — | Illinois |
| 3 | Nels Anderson | 46 | Head | Prop | Sweden |
| 4 | Irena Anderson | 19 | Wife | Clerk | Illinois |
| 5 | Otto Israel | 40 | Head | Prop | Illinois |
| 6 | Erna Israel | 38 | Wife | — | Illinois |
| 7 | Margery Israel | 5 | Daughter | — | Illinois |
| 8 | Adell Kurkowiak | 40 | Head | — | Germany |
| 9 | Herdis Forsland | 24 | Lodger | Apprentice Maker-Music | Minnesota |
| 10 | George Skordakis | 45 | Lodger | Prop | Greece |
| 11 | Herbert L. Glover | 63 | Lodger | Watchman | Michigan |
| 12 | Line Vacant | None | — | — | — |
| 13 | Bernard Papieruski | 42 | Head | Pattern Maker | Illinois |
| 14 | Frances Papieruski | 35 | Wife | — | Illinois |
| 15 | Donald Papieruski | 9 | Son | — | Illinois |
| 16 | Barbara Papieruski | 5 | Daughter | — | Illinois |
| 17 | John Papieruski | 1 | Son | — | Illinois |
| 18 | Pauline Keahen | 65 | Mother in law | — | Poland |
| 19 | Lorraine Satunas | 20 | Lodger | Typist & Sten. | Illinois |
| 20 | Milton Kummerow | 40 | Head | Maintenance Man | Illinois |
| 21 | Helen Kummerow | 36 | Wife | — | Illinois |
| 22 | Jane Kummerow | 15 | Daughter | — | Illinois |
| 23 | Muriel Kummerow | 12 | Daughter | — | Illinois |
| 24 | Glenn Kummerow | 5 | Son | — | Illinois |
| 25 | Minnie Dolla | 77 | Mother in law | — | Germany |
| 26 | Fred Dolla | 45 | Brother in law | Mover | Illinois |
| 27 | Clerma Dolla | 35 | Sister in law | Delivery Man | Illinois |
| 28 | Arthur Munsen | 37 | Head | Laborer-Stevedore | Illinois |
| 29 | Ethel Munsen | 36 | Wife | — | Illinois |
| 30 | Shirley Munsen | 16 | Daughter | — | Illinois |
| 31 | Francis A. Mclean | 48 | Head | Jr. Appraiser | Illinois |
| 32 | Alice Mclean | 43 | Wife | — | Illinois |
| 33 | John Mclean | 22 | Son | Factory Work | Illinois |
| 34 | Francis W. Mclean | 20 | Son | Shipping Room | Illinois |
| 35 | Jerome J. Mclean | 16 | Son | — | Illinois |
| 36 | Robert Mclean THIS PERSON | 14 | Son | — | Illinois |
| 37 | Giles Mclean | 9 | Son | — | Illinois |
| 38 | Bernice Mierzelek | 49 | Head | Dressmaker | Poland |
| 39 | Joseph Mierzelek | 28 | Son | Assembler | Illinois |
| 40 | John Bruszeki | 45 | Lodger | Advertising Agt. | Poland |
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)