JG
James Gillespie — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this James Gillespie across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 13-person household.
Age 8
b. ~1922
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Gillespie |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Canada |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1922 |
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.
13 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Mary Gillespie | Spouse | — | 45 | ~1885 |
| Helen Gillespie | Spouse | — | 32 | ~1898 |
| Robert Gillespie | Son | — | 2 | ~1928 |
| James Gillespie | Son | — | 4 | ~1926 |
| Robert Gillespie | Son | — | 4 | ~1926 |
| Emma Gillespie | Daughter | — | 7 | ~1923 |
| James Gillespie | Son | — | 8 | ~1922 |
| Mary Gillespie | Daughter | — | 1 | ~1929 |
| William Gillespie | Son | — | 15 | ~1915 |
| George Gillespie | Son | — | 10 | ~1920 |
| John Gillespie | Son | — | 18 | ~1912 |
| Arthur Gillespie | Son | — | 21 | ~1909 |
| James Gillespie | Head | — | 34 | ~1896 |
Census Appearances
1930
Cook, Illinois
Son, age 8
Cook, Illinois · implied b. ~1922 — 13 household members
| Surname | Gillespie |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Canada |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 19
Cook-County, Illinois · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gillispie |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Industry | 0 |
| Highest Grade | No 8 |
| 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 James Gillespie across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Gillespie
Son · 1930 · age 8 · b. ~1922 · Illinois
★ You are viewing this record
Sibling
George Gillespie
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Gillespie
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Gillespie
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Gillespie
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Gillespie
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Gillespie
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Gillespie
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Gillespie
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Gillespie
Sibling · 1930 · age 18
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:californiacensus00reel110:0912)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | — | 14 | — | — | Illinois |
| 52 | — | 12 | — | — | Illinois |
| 53 | — | 10 | — | — | Illinois |
| 54 | — | 60 | — | Traveling Salesman | Indiana |
| 55 | — | 53 | — | — | South Dakota |
| 56 | — | 22 | — | — | Illinois |
| 57 | — | 20 | — | — | Illinois |
| 58 | — | 18 | — | — | Illinois |
| 59 | Leo Dorn | 55 | Head | Contractor | Illinois |
| 60 | Anna Dorn | 47 | Wife | — | Illinois |
| 61 | Dorothy Dorn | 21 | Daughter | Teacher | Illinois |
| 62 | Leo Jr. Dorn | 15 | Son | — | Illinois |
| 63 | Mary Dorn | 4 | Daughter | Maid | Illinois |
| 64 | Frank Lammimo | 55 | Head | — | Italy |
| 65 | Mary Lammimo | 46 | Wife | — | Italy |
| 66 | Frank Jr. Lammimo | 22 | Son | Tool Maker | Illinois |
| 67 | Joseph Lammimo | 20 | Son | Civil Engineer | Illinois |
| 68 | Rose Lammimo | 15 | Daughter | — | Illinois |
| 69 | Theresa Lammimo | 13 | Daughter | Maid | Illinois |
| 70 | Anthony Lammimo | 11 | Son | — | Illinois |
| 71 | John Lammimo | 10 | Son | — | Illinois |
| 72 | Louis Lammimo | 8 | Son | — | Illinois |
| 73 | William Lammimo | 5 | Son | — | Illinois |
| 74 | James Gillespie | 34 | Head | Sales Manager | Canada |
| 75 | Helen Gillespie | 32 | Wife | — | Illinois |
| 76 | James Jr. Gillespie THIS PERSON | 8 | Son | — | Illinois |
| 77 | Robert Gillespie | 4 | Son | Maid | Illinois |
| 78 | Mary Gillespie | 45 | Wife | — | Illinois |
| 79 | Arthur Gillespie | 21 | Son | — | Illinois |
| 80 | John Gillespie | 18 | Son | — | Illinois |
| 81 | William Gillespie | 15 | Son | — | Illinois |
| 82 | George Gillespie | 10 | Son | — | Illinois |
| 83 | Emma Gillespie | 7 | Daughter | Servant | Illinois |
| 84 | James Gillespie | 4 | Son | — | Illinois |
| 85 | Robert Gillespie | 2 | Son | — | Illinois |
| 86 | Mary Gillespie | 1 | Daughter | — | Illinois |
| 87 | — | None | — | — | — |
| 88 | Arthur Gillespie | 47 | Head | — | Illinois |
| 89 | Mary Gillespie | 45 | Wife | Machinist | Illinois |
| 90 | Arthur Jr. Gillespie | 21 | Son | — | Illinois |
| 91 | John Gillespie | 18 | Son | Clerk | Illinois |
| 92 | William Gillespie | 15 | Son | — | Illinois |
| 93 | George Gillespie | 10 | Son | — | Illinois |
| 94 | Emma Gillespie | 7 | Daughter | — | Illinois |
| 95 | James Gillespie | 4 | Son | — | Illinois |
| 96 | — | None | — | — | — |
| 97 | Arthur Gillespie | 29 | Head | Officer | Illinois |
| 98 | Mary Gillespie | 26 | Wife | — | Illinois |
| 99 | Arthur Jr. Gillespie | 2 | Son | — | Illinois |
| 100 | John Gillespie | 0 | Son | — | 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)