RL
Robert Lyons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Robert Lyons across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Lyons |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Evanston |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Evanston |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Eloise Lyons | Daughter | — | 9 | ~1931 |
| Anita Lyons | Daughter | — | 7 | ~1933 |
| Robert Lyons | Head | — | 38 | ~1902 |
| Melvin Lyons | Son | — | 11 | ~1929 |
| Eugene Lyons | Son | — | 6 | ~1934 |
| Robert Lyons | Son | — | 12 | ~1928 |
| Florence Lyons | Spouse | — | 40 | ~1900 |
| Richard Lyons | Son | — | 4 | ~1936 |
| George Lyons | Son | — | 8 | ~1932 |
Census Appearances
1930
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Missouri |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 12
Cook-County, Illinois · implied b. ~1928 — 9 household members
| Surname | Lyons |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Evanston |
| 1935 Residence (County) | Cook |
| Highest Grade | 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 Lyons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Lyons
Son · 1940 · age 12 · b. ~1928 · Illinois
★ You are viewing this record
Sibling
Eloise Lyons
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Lyons
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Lyons
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Lyons
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anita Lyons
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Lyons
Sibling · 1940 · age 8
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-t0627-00779-00419)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Lyons | 38 | Head | Cleaner | Georgia |
| 2 | Florence Lyons | 40 | Wife | — | So Carolina |
| 3 | Robert Jr. Lyons THIS PERSON | 12 | Son | — | Illinois |
| 4 | Melvin Lyons | 11 | Son | — | Illinois |
| 5 | Eloise Lyons | 9 | Daughter | — | Illinois |
| 6 | George Lyons | 8 | Son | — | Illinois |
| 7 | Anita Lyons | 7 | Daughter | — | Illinois |
| 8 | Eugene Lyons | 6 | Son | — | Illinois |
| 9 | Richard Lyons | 4 | Son | — | Illinois |
| 10 | Lena Miller | 62 | Head | — | Mississippi |
| 11 | Raymond Miller | 23 | Son | Laborer | Mississippi |
| 12 | Irene Miller | 18 | Daughter | New Worker | Mississippi |
| 13 | Hattie Jordan | 14 | Daughter | — | Mississippi |
| 14 | Suzanne Jordan | 1 | Grandchild | — | Illinois |
| 15 | William Hudson | 39 | Head | Laborer | Mississippi |
| 16 | Lillian Hudson | 32 | Wife | — | Mississippi |
| 17 | Calvin Hudson | 20 | Son | New Worker | Illinois |
| 18 | Howard Hudson | 16 | Son | — | Illinois |
| 19 | Wilbur Hudson | 12 | Son | — | Illinois |
| 20 | Edward Hudson | 10 | Son | — | Illinois |
| 21 | Cassie Belle Hudson | 8 | Daughter | — | Illinois |
| 22 | Elizabeth Hudson | 6 | Daughter | — | Illinois |
| 23 | Samuel Hudson | 5 | Son | — | Illinois |
| 24 | Robert Hudson | 1 | Son | — | Illinois |
| 25 | Roberta Hudson | 1 | Daughter | — | Illinois |
| 26 | Robert Sullivan | 47 | Head | Salesman | So Carolina |
| 27 | Blanche Hibbs | 43 | Head | — | Illinois |
| 28 | Christine Hibbs | 12 | Daughter | — | Ohio |
| 29 | Jean Hibbs | 11 | Daughter | — | Nebraska |
| 30 | William Hibbs | 9 | Daughter | — | Nebraska |
| 31 | Patricia Hibbs | 8 | Daughter | — | Illinois |
| 32 | Harold Hibbs | 6 | Son | — | Illinois |
| 33 | Joseph Wilson | 64 | Head | Handyman | Tennessee |
| 34 | Minnie Wilson | 63 | Wife | Seamstress | Tennessee |
| 35 | Margaret Wilson | 38 | Daughter | Maid | Tennessee |
| 36 | Sally Heideman | 70 | Head | — | So Carolina |
| 37 | Arthur Brooks | 54 | Head | Laborer | So Carolina |
| 38 | Lucius Mccallum | 40 | Lodger | Night Man | Georgia |
| 39 | Louella Mccallum | 30 | Wife | Maid | S Carolina |
| 40 | Bessie Johnson | 64 | Head | — | Georgia |
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)