WL
William Lynch — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Joseph-County, Indiana
Our Model Tree links this William Lynch across the 1920, 1930 and 1940 US Censuses in St.-Joseph-County, Indiana (XGBoost, ~Confirmed), with identified parents William & Sophia — first a head (b.~1901), then head of a 3-person household.
Age 39
b. ~1901
Male
Head
Born: Tennessee
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Joseph-County, Indiana |
| Surname | Lynch |
| Given Name | William L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | South Bend |
| 1935 Residence (County) | St. Joseph |
| Additional Details | |
| Occupation | janitor |
| Industry | drugstore |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 780 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | Janitor |
| Township / Ward | South Bend |
| Est. Birth Year | ~1901 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Juanita Lynch | Daughter | — | 15 | ~1925 |
| William Lynch | Head | — | 39 | ~1901 |
| Bessie Lynch | Spouse | — | 37 | ~1903 |
Census Appearances
1920
St Joseph, …
Son, age 19
St Joseph, Indiana · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | Laborer |
| Industry | Sewing Machine Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1930
St Joseph, …
Head, age 29
St Joseph, Indiana · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Tennessee |
| Age at First Marriage | 23 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | molder |
| Industry | auto mfg co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20.00 |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
St.-Joseph-County, Indiana
Head, age 39
St.-Joseph-County, Indiana · implied b. ~1901 — 3 household members
| Surname | Lynch |
| Given Name | William L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | South Bend |
| 1935 Residence (County) | St. Joseph |
| Occupation | janitor |
| Industry | drugstore |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 780 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 William Lynch across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Lynch (~0.92 confidence) and mother Sophia Lynch (~0.60 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.76
Father
William Lynch
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Sophia Lynch
b. ~1890
Source mother
● Household
· direct · ~0.6
This person
Anchor record
William Lynch
Head · 1940 · age 39 · b. ~1901 · Indiana
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — St.-Joseph-County, Indiana
Open full size
1940 US Federal Census — St.-Joseph-County, Indiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01133-00737)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jerry Earley | 25 | Head | Laborer | Louisiana |
| 42 | Gladys Earley | 21 | Wife | — | Indiana |
| 43 | Gerald Earley | 1 | Son | — | Indiana |
| 44 | William L. Lynch THIS PERSON | 39 | Head | Janitor | Tennessee |
| 45 | Bessie B. Lynch | 37 | Wife | Saleslady | Oklahoma |
| 46 | Juanita Lynch | 15 | Daughter | — | Indiana |
| 47 | Arthur Johnson | 45 | Head | Laborer | Indiana |
| 48 | Margaret Johnson | 39 | Wife | — | Indiana |
| 49 | Casimir Wisniewski | 50 | Head | Foundry | Poland |
| 50 | Blanche Wisniewski | 45 | Wife | Core Maker | Indiana |
| 51 | Albert Wisniewski | 15 | Son | — | Indiana |
| 52 | Edwin Jasinski | 24 | Son-in-law | Laborer | Indiana |
| 53 | Irene Jasinski | 22 | Daughter | — | Illinois |
| 54 | John Pierzynski | 44 | Head | Woodworker | Poland |
| 55 | Stella Pierzynski | 49 | Wife | — | Poland |
| 56 | Melvina Pierzynski | 18 | Daughter | — | Indiana |
| 57 | Betty J. Pierzynski | 16 | Daughter | — | Indiana |
| 58 | Frank Mindykowski | 65 | Head | Woodworker | Pennsylvania |
| 59 | Sarah Mindykowski | 56 | Wife | — | Indiana |
| 60 | Edward Mindykowski | 33 | Son | Trimmer | Indiana |
| 61 | Elizabeth Mindykowski | 20 | Daughter | Washer | Indiana |
| 62 | Harry Mindykowski | 17 | Son | Newsworker | Indiana |
| 63 | Cecelia Jankowski | 65 | Head | — | Poland |
| 64 | Constance Komorowski | 38 | Daughter | Shoe Maker | Illinois |
| 65 | Lucille Komorowski | 19 | Granddaughter | Electric Power Machine | Indiana |
| 66 | Gertrude Komorowski | 18 | Granddaughter | — | Indiana |
| 68 | Charles Lawrence | 50 | Head | Laborer | Tennessee |
| 69 | Lucy Lawrence | 47 | Wife | — | Kentucky |
| 70 | Cecil Lawrence | 26 | Son | — | Indiana |
| 71 | Charles Lawrence | 16 | Son | — | Indiana |
| 72 | Floyd Lawrence | 13 | Son | — | Indiana |
| 73 | Kenneth Lawrence | 12 | Son | — | Indiana |
| 74 | Luellene Lawrence | 9 | Son | — | Indiana |
| 75 | Naomi Lawrence | 7 | Daughter | — | Indiana |
| 76 | Albert J. Banechaert | 22 | Head | Punch Press Opr. | Indiana |
| 77 | Imogene Banechaert | 21 | Wife | Neckwearer | Indiana |
| 78 | Andrew J. Przybysz | 59 | Head | Woodworker | Poland |
| 79 | Rosalie Przybysz | 51 | Wife | — | Michigan |
| 80 | Alice Przybysz | 24 | Daughter | Stenographer | Indiana |
Pedigree Summary
William
Gen 1 · 2 parents
~0.76
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)