JL
John Lowry — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this John Lowry across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 8-person household.
Age 4
b. ~1926
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Lowry |
| Given Name | John S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1926 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Lowry | Son | — | 4 | ~1926 |
| Martin Lowry | Head | — | 42 | ~1888 |
| William Carney | Other | — | 26 | ~1904 |
| Margaret Lowry | Daughter | — | 2 | ~1928 |
| Martin Lowry | Son | — | 6 | ~1924 |
| Catherine Lowry | Spouse | — | 42 | ~1888 |
| Mary Lowry | Daughter | — | 10 | ~1920 |
| Bernice Lowry | Daughter | — | 8 | ~1922 |
Census Appearances
1930
Cook, Illinois
Son, age 4
Cook, Illinois · implied b. ~1926 — 8 household members
| Surname | Lowry |
| Given Name | John S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 16
Cook-County, Illinois · implied b. ~1924 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lowrey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Stock Boy |
| Industry | Retail Grocery |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 88 |
| 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 John Lowry across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Lowry
Son · 1930 · age 4 · b. ~1926 · Illinois
★ You are viewing this record
Sibling
Martin Lowry
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Lowry
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Lowry
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Lowry
Sibling · 1930 · age 8
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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel488:0297)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John H. Grier | 14 | Son | None | Missouri |
| 2 | Robert A. Ross | 9 | Head | Printer | Mississippi |
| 3 | Florence E. Ross | 53 | Mother | None | Mississippi |
| 4 | Helen B. Rapp | 53 | Head | House Keeper | Wisconsin |
| 5 | Bernice Rapp | 26 | Daughter | Stenographer | Wisconsin |
| 6 | Ruth B. Swindler | 47 | Roomer | None | West Virginia |
| 7 | Charles Swindler | 43 | Roomer | Plumber | W. Virginia |
| 8 | Mary Eisenhardt | 74 | Roomer | House Keeper | Wisconsin |
| 9 | Adolph Snidstens | 28 | Head | Mechanic | Tennessee |
| 10 | Clara Snidstens | 21 | Wife | None | Tennessee |
| 11 | Norman Snidstens | 1 | Son | None | Illinois |
| 12 | John W. Stann | 51 | Roomer | Salesman | Pennsylvania |
| 13 | Amanda Swanson | 48 | Roomer | Laundress | Indiana |
| 14 | Rose A. Inden | 56 | Head | None | Illinois |
| 15 | John A. Inden | 55 | Bro. | Agent | Illinois |
| 16 | Hattie Schuler | 57 | Head | None | Illinois |
| 17 | Phyllis Schuler | 28 | Daughter | Secretary | Illinois |
| 18 | Lucille Schuler | 27 | Daughter | Musician | Illinois |
| 19 | Della A. Wheeler | 43 | Roomer | Graduate Nurse | Pennsylvania |
| 20 | Hydra Woles | 22 | Roomer | Teacher | Ohio |
| 21 | Martin J. Lowry | 42 | Head | Laborer | Irish Free State |
| 22 | Catherine Lowry | 42 | Wife | None | Irish Free State |
| 23 | Mary A. Lowry | 10 | Daughter | None | Illinois |
| 24 | Bernice Lowry | 8 | Daughter | None | Illinois |
| 25 | Martin Lowry | 6 | Son | None | Illinois |
| 26 | John S. Lowry THIS PERSON | 4 | Son | None | Illinois |
| 27 | Margaret Lowry | 2 | Daughter | None | Illinois |
| 28 | William Carney | 26 | Bro-in-law | Laborer | Irish Free State |
| 29 | James Rattray | 63 | Head | Carpenter | Illinois |
| 30 | Mattie Rattray | 48 | Wife | None | Wisconsin |
| 31 | Arthur J. Rattray | 26 | Son | Dept. Manager | Illinois |
| 32 | John Howard | 22 | Roomer | Truck Driver | Irish Free State |
| 33 | Harmon Perry | 62 | Head | Salesman | New York |
| 34 | Jean W. Perry | 48 | Wife | None | Illinois |
| 35 | Margaret Perry | 10 | Daughter | None | Illinois |
| 36 | Nick A. Mueller | 34 | Head | Laborer | Illinois |
| 37 | Margaret Mueller | 19 | Wife | None | Illinois |
| 38 | Arthur Mueller | 11 | Son | None | Illinois |
| 39 | Robert F. Mueller | 5 | Son | None | Illinois |
| 40 | Charles Mueller | 2 | Son | None | Illinois |
| 41 | Charles A. Walin | 63 | Head | Clothier | Sweden |
| 42 | Alma A. Walin | 57 | Wife | None | Sweden |
| 43 | Carl R. Walin | 32 | Son | War Vet. | Illinois |
| 44 | Vera A. Walin | 28 | Daughter | Binder | Illinois |
| 45 | Albert W. Walin | 22 | Son | Helper | Illinois |
| 46 | Frank L. Walin | 20 | Son | Helper | Illinois |
| 47 | Anna Henry | 69 | Head | None | Germany |
| 48 | Albert G. Henry | 45 | Son-in-law | Mechanic | Germany |
| 49 | Helen G. Henry | 38 | Daughter | None | Illinois |
| 50 | Margaret Henry | 9 | Granddaughter | None | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)