JL
John Larkin — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this John Larkin across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1907), then head of a 6-person household.
Age 23
b. ~1907
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Larkin |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Vermont |
| Additional Details | |
| Occupation | Salesman |
| Industry | Furniture Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Salesman |
| Township / Ward | Maywood Village |
| Est. Birth Year | ~1907 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Larkin | Daughter | — | 19 | ~1911 |
| Irma Larkin | Daughter | — | 17 | ~1913 |
| John Larkin | Head | — | 56 | ~1874 |
| Edward Lynch | Other | — | 21 | ~1909 |
| John Larkin | Son | — | 23 | ~1907 |
| Agnes Larkin | Spouse | — | 50 | ~1880 |
Census Appearances
1910
Cook, Illinois
Son, age 3
Cook, Illinois · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larkins |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Vermont |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 12
Cook, Illinois · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larkin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Vermont |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 23
Cook, Illinois · implied b. ~1907 — 6 household members
| Surname | Larkin |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Vermont |
| Occupation | Salesman |
| Industry | Furniture Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Larkin across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father John Larkin (~0.92 confidence) and father John Larkins (~0.92 confidence) and father George Larkin (~0.92 confidence) and mother Agnes Larkins (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Larkin
b. ~1874
Source father
● Household
· direct · ~0.92
Father
John Larkins
b. ~1874
Source father
● Household
· direct · ~0.92
Father
George Larkin
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Agnes Larkins
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Larkin
Son · 1930 · age 23 · b. ~1907 · Illinois
★ You are viewing this record
Sibling
Irma Larkin
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Larkin
Sibling · 1930 · age 19
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:illinoiscensus00reel507:0801)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Joseph Vilek | 52 | Head | Salesman | Bohemia |
| 52 | Mildred Vilek | 47 | Wife | — | Illinois |
| 53 | Eleanor Vilek | 18 | Daughter | — | Illinois |
| 54 | Joseph Smith | 41 | Head | Salesman | Illinois |
| 55 | Alice Smith | 37 | Wife | — | Illinois |
| 56 | Robert Smith | 14 | Son | — | Illinois |
| 57 | Dorothy Smith | 10 | Daughter | — | Illinois |
| 58 | Charles Smith | 8 | Son | — | Illinois |
| 59 | June Smith | 5 | Daughter | — | Illinois |
| 60 | Harold Sanger | 28 | Head | Printer | Illinois |
| 61 | Mabel Sanger | 25 | Wife | — | Kansas |
| 62 | Joan Sanger | 4 | Daughter | — | Illinois |
| 63 | Harold Jr. Sanger | 1 | Son | — | Illinois |
| 64 | Esther S. Sanger | 64 | Mother | Saleslady | Iowa |
| 65 | George H. Sewall | 35 | Brother-in-law | Purchasing Agent | Illinois |
| 66 | Verna Sewall | 32 | Sister | — | Illinois |
| 67 | Henry Stopp | 53 | Head | Foreman | Germany |
| 68 | Minnie Stopp | 51 | Wife | — | Germany |
| 69 | Willard Thomas | 31 | Head | Inspector | Wisconsin |
| 70 | Lucille Thomas | 27 | Wife | — | Illinois |
| 71 | Albert Johnston | 38 | Head | Salesman | Kansas |
| 72 | Harriett Johnston | 37 | Wife | Saleswoman | Illinois |
| 73 | Raymond Cook | 27 | Boarder | — | Illinois |
| 74 | Edward King | 29 | Head | Salesman | Illinois |
| 75 | Mildred King | 25 | Wife | — | Illinois |
| 76 | Edward Jr. King | 2 | Son | — | Illinois |
| 77 | Mary King | 1 | Daughter | — | Illinois |
| 78 | Grant King | 0 | Son | — | Illinois |
| 79 | Frank H. Mobley | 43 | Head | Inspector | Maryland |
| 80 | Clara Mobley | 43 | Wife | — | Maryland |
| 81 | Myrtle Mobley | 25 | Daughter | Typist | Maryland |
| 82 | Roberta Mobley | 22 | Daughter | General Office | Maryland |
| 83 | James G. Mobley | 18 | Son | — | Illinois |
| 84 | Howard Gross | 26 | Brother-in-law | Claim Adjuster | Maryland |
| 85 | Maurice Carlborn | 60 | Head | Buyer Antiques | Sweden |
| 86 | Gerda Carlborn | 42 | Wife | — | Sweden |
| 87 | Marshall Carlborn | 10 | Son | — | Illinois |
| 88 | William Luck | 29 | Head | Salesman | Delaware |
| 89 | Mary E. Luck | 26 | Wife | — | Pennsylvania |
| 90 | Harriett Luck | 1 | Daughter | — | Illinois |
| 91 | Donald Laville | 31 | Head | Manager | Illinois |
| 92 | Helen Laville | 29 | Wife | — | Illinois |
| 93 | Dora Marie Laville | 1 | Daughter | — | Illinois |
| 94 | John Larkin | 56 | Head | Electrician | Illinois |
| 95 | Agnes Larkin | 50 | Wife | — | Vermont |
| 96 | John Jr. Larkin THIS PERSON | 23 | Son | Salesman | Illinois |
| 97 | Mary Larkin | 19 | Daughter | — | Illinois |
| 98 | Irma Larkin | 17 | Daughter | Secretary | Illinois |
| 99 | Edward Lynch | 21 | Lodger | Salesman | Illinois |
| 100 | Arthur Callow | 39 | Head | Salesman | Illinois |
Pedigree Summary
John + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)