JM
James Mann — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Franklin-County, Illinois
Our Model Tree links this James Mann across the 1930 and 1940 US Censuses in Franklin-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 5-person household.
Age 19
b. ~1921
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Franklin-County, Illinois |
| Surname | Mann |
| Given Name | James Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | West Frankfort |
| 1935 Residence (County) | Franklin |
| Additional Details | |
| Occupation | Laborer |
| Industry | NYA |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 288 |
| Highest Grade | H 2 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | West Frankfort |
| Est. Birth Year | ~1921 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Jack Mann | Son | — | 11 | ~1929 |
| Helen Mann | Spouse | — | 39 | ~1901 |
| Mary Mann | Daughter | — | 6 | ~1934 |
| James Mann | Son | — | 19 | ~1921 |
| James Mann | Head | — | 43 | ~1897 |
Census Appearances
1930
Franklin, Illinois
Son, age 9
Franklin, Illinois · implied b. ~1921 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Manns |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Franklin-County, Illinois
Son, age 19
Franklin-County, Illinois · implied b. ~1921 — 5 household members
| Surname | Mann |
| Given Name | James Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | West Frankfort |
| 1935 Residence (County) | Franklin |
| Occupation | Laborer |
| Industry | NYA |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 288 |
| Highest Grade | H 2 |
| 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 James Mann across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mann
Son · 1940 · age 19 · b. ~1921 · Illinois
★ You are viewing this record
Sibling
Mary Mann
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Mann
Sibling · 1940 · age 11
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 — Franklin-County, Illinois
Open full size
1940 US Federal Census — Franklin-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00803-00605)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Pearl D Roman | 49 | Head | Seamstress | Illinois |
| 2 | Basil Roman | 17 | Son | Laborer | Illinois |
| 3 | Alice D Roman | 11 | Daughter | — | Illinois |
| 4 | Orval D Adams | 41 | Head | Laborer | Illinois |
| 5 | Lena D Adams | 34 | Wife | — | Illinois |
| 6 | Darrell Adams | 14 | Son | — | Missouri |
| 7 | Joyce A Adams | 2 | Daughter | — | Illinois |
| 8 | Bobby G Adams | 0 | Son | — | Illinois |
| 9 | Beulah Martin | 38 | Head | — | Illinois |
| 10 | Robert E Martin | 16 | Son | — | Illinois |
| 11 | Billy W Martin | 10 | Son | — | Illinois |
| 12 | Jackie Martin | 8 | Son | — | Illinois |
| 13 | Judith Martin | 3 | Daughter | — | Illinois |
| 15 | Nash Bradley | 54 | Head | Carpenter | Illinois |
| 16 | Ella Bradley | 51 | Wife | — | Illinois |
| 17 | Othel Bradley | 25 | Son | Salesman | Illinois |
| 18 | Mable Bradley | 23 | Daughter | — | Illinois |
| 19 | Thelma Bradley | 20 | Daughter | — | Illinois |
| 20 | James Bradley | 18 | Son | — | Illinois |
| 21 | Arthur Bradley | 22 | Nephew | Laborer | Illinois |
| 22 | Kenneth A Grady | 29 | Head | Miner | Illinois |
| 23 | Virginia Grady | 23 | Wife | — | Illinois |
| 24 | James C Mann | 43 | Head | Laborer | Illinois |
| 25 | Helen Mann | 39 | Wife | — | Scotland |
| 26 | James Jr Mann THIS PERSON | 19 | Son | Laborer | Illinois |
| 27 | Jack Mann | 11 | Son | — | Illinois |
| 28 | Mary E Mann | 6 | Daughter | — | Illinois |
| 29 | Francis C Doris | 31 | Head | Laborer | Illinois |
| 30 | Edith Doris | 18 | Wife | — | Illinois |
| 31 | Larry F Doris | 2 | Son | — | Illinois |
| 32 | William Mayer | 32 | Head | Miner | Illinois |
| 33 | Haydia Mayer | 28 | Wife | — | Missouri |
| 34 | Ralph Jr Mayer | 11 | Son | — | Illinois |
| 35 | Zodonia Mayer | 10 | Daughter | — | Illinois |
| 36 | Phillip Mayer | 1 | Son | — | Illinois |
| 37 | William T Short | 31 | Head | Miner | Illinois |
| 38 | Ruby M Short | 28 | Wife | — | Illinois |
| 39 | Leona M Short | 8 | Daughter | — | Illinois |
| 40 | Virginia F Short | 7 | 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)