JC
James Crowley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kent-County, Michigan
Our Model Tree links this James Crowley across the 1930 and 1940 US Censuses in Kent-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 6-person household.
Age 10
b. ~1930
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kent-County, Michigan |
| Surname | Crowley |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Grand Rapids City |
| 1935 Residence (County) | Kent |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Grand Rapids City |
| Est. Birth Year | ~1930 |
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 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Robert Crowley | Head | — | 35 | ~1905 |
| Nancy Crowley | Daughter | — | 7 | ~1933 |
| James Crowley | Son | — | 10 | ~1930 |
| Bernadette Crowley | Spouse | — | 32 | ~1908 |
| John Crowley | Son | — | 5 | ~1935 |
| Helen Crowley | Daughter | — | 9 | ~1931 |
Census Appearances
1930
Kent, Michigan
Son, age 1
Kent, Michigan · implied b. ~1929 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crowley |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Kent-County, Michigan
Son, age 10
Kent-County, Michigan · implied b. ~1930 — 6 household members
| Surname | Crowley |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Grand Rapids City |
| 1935 Residence (County) | Kent |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Crowley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Crowley
Son · 1940 · age 10 · b. ~1930 · Michigan
★ You are viewing this record
Sibling
Nancy Crowley
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Crowley
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Crowley
Sibling · 1940 · age 5
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 — Kent-County, Michigan
Open full size
1940 US Federal Census — Kent-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01900-00596)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Aubert D Lawton | 28 | Head | Wholesale Salesman | New York |
| 2 | Dorothea Lawton | 28 | Wife | — | Indiana |
| 3 | William H Lawton | 15 | Son | — | New York |
| 4 | Clinton Ziegler | 47 | Head | Supt | New York |
| 5 | Mabel E Ziegler | 46 | Wife | — | New York |
| 6 | Jean Ziegler | 16 | Daughter | — | Michigan |
| 7 | Julia Ziegler | 15 | Daughter | — | Michigan |
| 8 | Duane S Ziegler | 12 | Son | — | Michigan |
| 9 | James Ziegler | 4 | Son | — | Michigan |
| 10 | Ann Louise Ziegler | 69 | Mother | — | New York |
| 11 | Robert Crowley | 35 | Head | Driver | Michigan |
| 12 | Bernadette Crowley | 32 | Wife | — | Michigan |
| 13 | James Crowley THIS PERSON | 10 | Son | — | Michigan |
| 14 | Helen Crowley | 9 | Daughter | — | Michigan |
| 15 | Nancy Crowley | 7 | Daughter | — | Michigan |
| 16 | John Crowley | 5 | Son | — | Michigan |
| 17 | Daniel J Wall | 48 | Head | Sales Mgr | Canada |
| 18 | Mary H Wall | 46 | Wife | — | Michigan |
| 19 | Philip A Wall | 15 | Son | — | Michigan |
| 20 | William Wagenschutz | 40 | Head | Wholesale Salesman | Michigan |
| 21 | Esther Wagenschutz | 38 | Wife | — | Michigan |
| 22 | Glenn S Cain | 56 | Head | Farm Salesman | Michigan |
| 23 | Nyna Cain | 46 | Wife | — | Michigan |
| 24 | Glenn Cain | 16 | Son | — | Michigan |
| 25 | Sherrie G Cain | 14 | Daughter | — | Michigan |
| 26 | Frank D Martin | 53 | Head | Lumber Salesman | Michigan |
| 27 | Mary Martin | 53 | Wife | — | Michigan |
| 28 | Robert Martin | 24 | Son | Assembler | Michigan |
| 29 | Mary Eliz Martin | 22 | Daughter | Operator | Michigan |
| 30 | Kathleen Martin | 19 | Daughter | Operator | Michigan |
| 31 | Helen J Martin | 15 | Daughter | — | Michigan |
| 32 | Harry Masely | 58 | Head | Building Inspector | Michigan |
| 33 | Josephine Masely | 58 | Wife | — | Michigan |
| 34 | Joseph Hurlbut | 46 | Head | Dry Goods Salesman | Michigan |
| 35 | May D Hurlbut | 42 | Wife | — | Indiana |
| 36 | Suzanne Hurlbut | 20 | Daughter | — | Michigan |
| 37 | Elizabeth Hurlbut | 16 | Daughter | — | Michigan |
| 38 | Jo Ann Hurlbut | 15 | Daughter | — | Michigan |
| 39 | Carlton Theobald | 49 | Head | Fire Ins | Michigan |
| 40 | Laura Theobald | 48 | Wife | — | Michigan |
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)