JL
John Lynch — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this John Lynch across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents John & Helen — first a son (b.~1913), then head of a 6-person household.
Age 27
b. ~1913
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Lynch |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Special Policeman |
| Industry | Park Board |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Special Policeman |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1913 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Barbara Lynch | Daughter | — | 29 | ~1911 |
| Dorthy Coates | Daughter | — | 30 | ~1910 |
| Dorothy Hill | Daughter | — | 11 | ~1929 |
| Will Lynch | Daughter | — | 32 | ~1908 |
| Carrie Lynch | Head | — | 55 | ~1885 |
| John Lynch | Son | — | 27 | ~1913 |
Census Appearances
1920
Marion, Indiana
Son, age 6
Marion, Indiana · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 16
Marion, Indiana · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 27
Marion-County, Indiana · implied b. ~1913 — 6 household members
| Surname | Lynch |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Special Policeman |
| Industry | Park Board |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 John Lynch across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Lynch (~0.92 confidence) and mother Helen Lynch (~0.92 confidence) and mother Carrie Lynch (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Lynch
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Helen Lynch
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Carrie Lynch
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Lynch
Son · 1940 · age 27 · b. ~1913 · Indiana
★ You are viewing this record
Sibling
Barbara Lynch
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorthy Coates
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Hill
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Will Lynch
Sibling · 1940 · age 32
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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01123-00012)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Eloise Johnson | 15 | Daughter | — | Indiana |
| 42 | Randle Hutcherson | 4 | Lodger | — | Indiana |
| 43 | Eugene Howard | 25 | Head | Laborer | Indiana |
| 44 | Dorothy Howard | 19 | Wife | — | Indiana |
| 45 | Eleanora Hill | 42 | Mother | — | Kentucky |
| 46 | Catherine Howard | 17 | Sister | — | Indiana |
| 47 | James Bush | 42 | Head | Maid | Kentucky |
| 48 | Relax Bush | 42 | Wife | — | Kentucky |
| 49 | Thomas Fleming | 28 | Head | Laborer | Kentucky |
| 50 | Arlene Fleming | 23 | Wife | — | Kentucky |
| 51 | Lodge Ruth | None | F | — | — |
| 52 | Lodge Thomas | None | M | — | — |
| 53 | Austin Holliday | 47 | Head | — | Georgia |
| 54 | Herman Holliday | 24 | Son | Laborer | Georgia |
| 55 | Ruby Holliday | 23 | Daughter | Maid | Georgia |
| 56 | Montzella Holliday | 20 | Son | Laborer | Tenn. |
| 57 | Joseph Holliday | 12 | Son | — | Indiana |
| 58 | Betty Holliday | 10 | Daughter | — | Indiana |
| 59 | Harry Bebonke | 38 | Head | Boiler Maker | Indiana |
| 60 | Marie Bebonke | 39 | Wife | — | Indiana |
| 61 | Patricia Bebonke | 11 | Daughter | — | Indiana |
| 62 | Barbara Bebonke | 7 | Daughter | — | Indiana |
| 63 | Margaret Bebonke | 6 | Daughter | — | Indiana |
| 64 | Ernest Lee | 34 | Head | Cutter | Indiana |
| 65 | Eva D. Lee | 30 | Wife | — | Illinois |
| 66 | Virginia Lee | 6 | Daughter | — | Indiana |
| 67 | William Rooney | 51 | Head | Merchant (Retail) | Illinois |
| 68 | Mabel Rooney | 37 | Wife | — | Indiana |
| 69 | Max Rooney | 14 | Son | — | Indiana |
| 70 | Oral Downey | 46 | Head | Barber | Indiana |
| 71 | Sylvia Downey | 30 | Wife | — | Indiana |
| 72 | Rose Mary Downey | 12 | Daughter | — | Indiana |
| 73 | Carrie Lynch | 55 | Head | — | Missouri |
| 74 | Will Elen Lynch | 32 | Daughter | — | Missouri |
| 75 | Dorthy Coates | 30 | Daughter | Clerk | Missouri |
| 76 | John Lynch THIS PERSON | 27 | Son | Special Policeman | Indiana |
| 77 | Barbara Ruth Lynch | 29 | Daughter | — | Indiana |
| 78 | Dorothy Hill | 11 | Daughter | — | Indiana |
Pedigree Summary
John + 4 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)