JL
John Lyons — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this John Lyons across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents James & Margaret — first a son (b.~1908), then head of a 4-person household.
Age 32
b. ~1908
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Lyons |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Tile setter |
| Industry | Private Building |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 160 |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Tile Setter |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1908 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Catherine Sweeney | Daughter | — | 39 | ~1901 |
| Margaret Lyons | Head | — | 71 | ~1869 |
| Thomas Sweeney | Other | — | 10 | ~1930 |
| John Lyons | Son | — | 32 | ~1908 |
Census Appearances
1920
Marion, Indiana
Son, age 12
Marion, Indiana · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 22
Marion, Indiana · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Tile Setter |
| Industry | Construction |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 32
Marion-County, Indiana · implied b. ~1908 — 4 household members
| Surname | Lyons |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Tile setter |
| Industry | Private Building |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 160 |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| 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 Lyons across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Lyons (~0.92 confidence) and mother Margaret Lyons (~0.92 confidence) and mother Maggie Lyons (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Lyons
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Margaret Lyons
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Maggie Lyons
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Lyons
Son · 1940 · age 32 · b. ~1908 · Indiana
★ You are viewing this record
Sibling
Catherine Sweeney
Sibling · 1940 · age 39
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
40 people indexed on this census page (nara:1940:m-t0627-01128-00703)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frances Hutton | 4 | Grand dau | — | Indiana |
| 2 | Paul Jr Hutton | 3 | Grand son | — | Indiana |
| 3 | Michael Ackerman | 59 | Head | Iron Worker | Indiana |
| 4 | Grace Ackerman | 49 | Wife | — | Indiana |
| 5 | Mary Moore | 64 | Head | — | New York |
| 6 | Rose Moore | 25 | Neice | Clerk | Indiana |
| 7 | Louisa Tenner | 67 | Head | Day Goods | Pennsylvania |
| 8 | Anna Tenner | 65 | Sister | — | Pennsylvania |
| 9 | Brother John | None | M | Odd Jobs | — |
| 10 | Sister Tilla | None | F | — | — |
| 11 | Ira Young | 62 | Head | Laborer | Kentucky |
| 12 | Martha Young | 73 | Wife | — | Indiana |
| 13 | Michael Kenney | 80 | Head | — | Ireland |
| 14 | Rhoda Kenney | 80 | Wife | — | Indiana |
| 15 | James W. Jones | 51 | Head | Laborer | Kentucky |
| 16 | Verna Jones | 46 | Wife | — | Kentucky |
| 17 | Helena Jones | 12 | Daughter | — | Kentucky |
| 18 | Waneta Jones | 9 | Daughter | — | Indiana |
| 19 | James B Jones | 5 | Son | — | Indiana |
| 20 | Loretta Jones | 3 | Daughter | — | Indiana |
| 21 | Edmund York | 24 | Son-in-law | Laborer | Indiana |
| 22 | Pauline York | 21 | Daughter | Laborer | Kentucky |
| 23 | Ruth Reeder | 60 | Head | — | Indiana |
| 24 | Burress Wilbur | 35 | Head | Manager | Indiana |
| 25 | Carrie Wilbur | 19 | Wife | Seamstress | Tennessee |
| 26 | Oscar Skinner | 53 | Head | Foreman | Indiana |
| 27 | Inez Skinner | 54 | Wife | — | Indiana |
| 28 | Margaret Lyons | 71 | Head | — | Ireland |
| 29 | John J. Lyons THIS PERSON | 32 | Son | Tile Setter | Indiana |
| 30 | Catherine Sweeney | 39 | Daughter | Laborer | Indiana |
| 31 | Thomas Jr Sweeney | 10 | Grand son | — | Indiana |
| 32 | Oliver M Jones | 65 | Head | Car Cooper | Kentucky |
| 33 | Alice E Jones | 48 | Wife | — | Indiana |
| 34 | John J. Johns | 37 | Head | U.S. Dept. Agr. | Indiana |
| 35 | Iona M Johns | 43 | Wife | — | Kentucky |
| 36 | Squire Harry | 81 | Head | — | Indiana |
| 37 | Irvin Gibson | 17 | Nephew | News Walker | Indiana |
| 38 | Ben Nickson | 58 | Head | Laborer | Indiana |
| 39 | John J Moore | 72 | Head | Clerk | Kentucky |
| 40 | Maria Moore | 68 | Wife | Clerk | Indiana |
Pedigree Summary
John + 1 sibling
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)