JC
John Crowley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jackson-County, Michigan
Our Model Tree links this John Crowley across the 1930 and 1940 US Censuses in Jackson-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 8-person household.
Age 19
b. ~1921
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jackson-County, Michigan |
| Surname | Crowley |
| Given Name | John Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Jackson City |
| 1935 Residence (County) | Jackson |
| Additional Details | |
| Occupation | meat cutter |
| Industry | market |
| Class of Worker | NP |
| Hours Worked | 4 |
| Income (1939) | 452 |
| Highest Grade | H-2 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Meat Cutter |
| Township / Ward | Jackson City |
| Est. Birth Year | ~1921 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Janetta Crowley | Spouse | — | 43 | ~1897 |
| William Crowley | Son | — | 17 | ~1923 |
| Richard Crowley | Son | — | 3 | ~1937 |
| Daniel Crowley | Son | — | 5 | ~1935 |
| John Crowley | Head | — | 41 | ~1899 |
| David Crowley | Son | — | 9 | ~1931 |
| Phyllis Crowley | Daughter | — | 12 | ~1928 |
| John Crowley | Son | — | 19 | ~1921 |
Census Appearances
1930
Jackson, Michigan
Son, age 8
Jackson, Michigan · implied b. ~1922 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crowley |
| Given Name | John H Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| 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
Jackson-County, Michigan
Son, age 19
Jackson-County, Michigan · implied b. ~1921 — 8 household members
| Surname | Crowley |
| Given Name | John Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Jackson City |
| 1935 Residence (County) | Jackson |
| Occupation | meat cutter |
| Industry | market |
| Class of Worker | NP |
| Hours Worked | 4 |
| Income (1939) | 452 |
| Highest Grade | H-2 |
| 1935 Residence | Same House |
| 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 John Crowley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Crowley
Son · 1940 · age 19 · b. ~1921 · Michigan
★ You are viewing this record
Sibling
Richard Crowley
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phyllis Crowley
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Crowley
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Crowley
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Crowley
Sibling · 1940 · age 17
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 — Jackson-County, Michigan
Open full size
1940 US Federal Census — Jackson-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01769-00058)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Blanche Cojawa | 23 | daughter | Clerical Work | Michigan |
| 2 | Edward Cojawa | 21 | son | Unable | Michigan |
| 3 | Blanche Candell | 63 | Head | Unable | Michigan |
| 4 | George Graul | 68 | Husband | Painter | Michigan |
| 5 | Erna Sauter | 39 | daughter | Assembler | Michigan |
| 6 | Vivian Lerch | 21 | granddaughter | New Worker | Michigan |
| 7 | Lillian Lerch | 19 | granddaughter | Elevator Oper. | Michigan |
| 8 | Winifred Lerch | 15 | granddaughter | Usher | Michigan |
| 9 | Henry Kaplinski | 34 | Head | Tool Maker | Michigan |
| 10 | Anna Kaplinski | 27 | wife | House Wife | Wisconsin |
| 11 | Mary Lou Kaplinski | 6 | daughter | — | Michigan |
| 12 | Chester Paruchi | 45 | Head | Inspector | Poland |
| 13 | Josephine Paruchi | 45 | wife | House Wife | Poland |
| 14 | Floyd Paruchi | 24 | son | Black Smith | Michigan |
| 15 | Ted Paruchi | 21 | son | Machinist | Michigan |
| 16 | Edward Paruchi | 20 | son | New Worker | Michigan |
| 17 | Jane Paruchi | 15 | daughter | New Worker | Michigan |
| 18 | Walter Paruchi | 13 | son | — | Michigan |
| 19 | John Freitad | 46 | Head | Machine Oper | Michigan |
| 20 | Lillian Freitad | 39 | wife | House Wife | Michigan |
| 21 | Bert Maxwell | 24 | step son | Laboratory Work | Michigan |
| 22 | Mary Jane Freitad | 16 | daughter | Clerical Work | Michigan |
| 23 | Anna M. Freitad | 12 | daughter | — | Michigan |
| 24 | John H. Crowley | 41 | Head | Owner Meat Market | Michigan |
| 25 | Janetta Crowley | 43 | wife | House Wife | Michigan |
| 26 | John Jr. Crowley THIS PERSON | 19 | son | Meat Cutter | Michigan |
| 27 | William Crowley | 17 | son | New Worker | Michigan |
| 28 | Phyllis Crowley | 12 | daughter | — | Michigan |
| 29 | David Crowley | 9 | son | — | Michigan |
| 30 | Daniel Crowley | 5 | son | — | Michigan |
| 31 | Richard Crowley | 3 | son | — | Michigan |
| 32 | Michael Murphy | 78 | Head | Laborer | Ireland |
| 33 | Anna C. Kofflin | 39 | daughter | House Wife | Michigan |
| 34 | Frank D. Kofflin | 48 | son in law | Accountant | Ohio |
| 35 | Donald Kofflin | 11 | grandson | — | Michigan |
| 36 | Veronica Kofflin | 9 | granddaughter | — | Michigan |
| 37 | Mary N. Kofflin | 4 | granddaughter | — | Michigan |
| 38 | Earnest Clark | 38 | Head | Clerk | Michigan |
| 39 | Ruth Clark | 39 | wife | House Wife | Michigan |
| 40 | William H. Barns | 69 | Head | Decorator Painter | 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)