JF
James Fleming — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this James Fleming across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 6-person household.
Age 68
b. ~1872
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Fleming |
| Given Name | James L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Medical Doctor |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | C 5 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Medical Doctor |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1872 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Lois Fleming | Daughter | — | 18 | ~1922 |
| Rita Fleming | Daughter | — | 12 | ~1928 |
| Doris Fleming | Daughter | — | 23 | ~1917 |
| James Fleming | Head | — | 68 | ~1872 |
| Donald Fleming | Son | — | 14 | ~1926 |
| Joseph Fleming | Son | — | 21 | ~1919 |
Census Appearances
1920
Cook, Illinois
Head, age 47
Cook, Illinois · implied b. ~1873 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fleming |
| Given Name | James L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Physician |
| Industry | General Practice |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Cook, Illinois
Head, age 58
Cook, Illinois · implied b. ~1872 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fleming |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 32 |
| Father's Birthplace | New York |
| Mother's Birthplace | Canada |
| Occupation | Doctor |
| Industry | Physician |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | $40,000 |
| Radio Set | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cook-County, Illinois
Head, age 68
Cook-County, Illinois · implied b. ~1872 — 6 household members
| Surname | Fleming |
| Given Name | James L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Medical Doctor |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | C 5 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 James Fleming across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Fleming
Head · 1940 · age 68 · b. ~1872 · Illinois
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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
39 people indexed on this census page (nara:1940:m-t0627-00984-00523)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Stark | 48 | Head | Mixer | Czechoslovakia |
| 42 | Josephine Stark | 48 | Wife | — | Czechoslovakia |
| 43 | William Stark | 25 | Son | Packer | Czechoslovakia |
| 44 | Mary Stark | 18 | Daughter | — | Czechoslovakia |
| 45 | Joseph Dudricky | 52 | Head | Cabinet Maker | Czechoslovakia |
| 46 | Theresa Dudricky | 56 | Wife | — | Czechoslovakia |
| 47 | Louis Dudricky | 30 | Daughter | Switchboard Operator | Illinois |
| 48 | Joe Dudricky | 26 | Son | Assembler | Illinois |
| 49 | Ivy Tinney | 59 | Mother | Housekeeper | Illinois |
| 50 | Joseph Cargoneit | 74 | Head | — | Italy |
| 51 | Providence Cargoneit | 64 | Wife | — | Italy |
| 52 | Ann Cargoneit | 25 | Daughter | Knit Press Operator | Italy |
| 53 | Ernest Hanke | 51 | Head | Proprietor | Germany |
| 54 | Louise Hanke | 50 | Wife | — | Germany |
| 55 | Ernest Hanke | 18 | Son | Barber | Germany |
| 56 | Martin Kaplan | 21 | Brother | Salesman | Illinois |
| 57 | Chester Subenski | 26 | Head | Laborer | Illinois |
| 58 | Frances Subenski | 26 | Wife | Packer | Illinois |
| 59 | Dorothy Subenski | 17 | Daughter | — | Illinois |
| 60 | John Smagacz | 49 | Head | Laborer | Poland |
| 61 | Anna Smagacz | 47 | Wife | — | Poland |
| 62 | Eugene Smagacz | 17 | Son | Paper Boy | Illinois |
| 63 | Loretta Smagacz | 15 | Daughter | — | Illinois |
| 64 | Jean Wolowicz | 26 | Head | Sorter | Illinois |
| 65 | Edward Wolowicz | 24 | Son | Machine Operator | Illinois |
| 66 | Mary Wolowicz | 20 | Daughter | Power Machine Operator | Illinois |
| 67 | Mary Schulz | 66 | Head | Bookkeeper | Germany |
| 68 | Herbert C Johnson | 47 | Nephew | Paper Cutter | Illinois |
| 69 | Elmer Johnson | 19 | Nephew | Errand Boy | Illinois |
| 70 | Pearl Johnson | 15 | Niece | — | Illinois |
| 71 | Walter Johnson | 46 | Head | Proprietor | Illinois |
| 72 | Margaret Johnson | 43 | Wife | — | Poland |
| 73 | Eleanor Johnson | 27 | Daughter | Seamstress | Illinois |
| 74 | James L Fleming THIS PERSON | 68 | Head | Medical Doctor | Iowa |
| 75 | Doris C Fleming | 23 | Daughter | Representative | Illinois |
| 76 | Joseph L Fleming | 21 | Son | — | Illinois |
| 77 | Lois M Fleming | 18 | Daughter | Stenographer | Illinois |
| 78 | Donald H Fleming | 14 | Son | — | Illinois |
| 79 | Rita D Fleming | 12 | Daughter | — | Illinois |
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)