JT
John Tracy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this John Tracy across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 8-person household.
Age 47
b. ~1893
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Tracy |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | Electrical Inspector |
| Industry | Electric Utility |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2860 |
| Highest Grade | C 1 |
| 1935 Residence | Same Place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Electrical Inspector |
| Township / Ward | Detroit |
| Est. Birth Year | ~1893 |
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 |
|---|---|---|---|---|
| Margaret Fontaine | Daughter | — | 26 | ~1914 |
| Kathleen Tracy | Daughter | — | 16 | ~1924 |
| Harold Tracy | Son | — | 23 | ~1917 |
| William Tracy | Son | — | 21 | ~1919 |
| John Tracy | Head | — | 47 | ~1893 |
| John Tracy | Son | — | 24 | ~1916 |
| Virginia Tracy | Daughter | — | 15 | ~1925 |
| Ann Tracy | Spouse | — | 46 | ~1894 |
Census Appearances
1930
Wayne, Michigan
Head, age 37
Wayne, Michigan · implied b. ~1893 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tracey |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 22 |
| Father's Birthplace | Unknown |
| Mother's Birthplace | U.S. |
| Occupation | Electrician |
| Industry | Edison Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10.00 |
| Veteran | No |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Head, age 47
Wayne-County, Michigan · implied b. ~1893 — 8 household members
| Surname | Tracy |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Occupation | Electrical Inspector |
| Industry | Electric Utility |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2860 |
| Highest Grade | C 1 |
| 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 John Tracy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Tracy
Head · 1940 · age 47 · b. ~1893 · Michigan
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01869-00841)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bart Bella M. Hart | 57 | Wife | — | Michigan |
| 42 | John J. Tracy THIS PERSON | 47 | Head | Electrical Inspector | Michigan |
| 43 | Ann M. Tracy | 46 | Wife | — | Michigan |
| 44 | John J. Jr. Tracy | 24 | Son | Store Salesman | Michigan |
| 45 | Harold S. Tracy | 23 | Son | Body Builder | Michigan |
| 46 | William H. Tracy | 21 | Son | Fireman | Michigan |
| 47 | Kathleen Tracy | 16 | Daughter | — | Michigan |
| 48 | Virginia M. Tracy | 15 | Daughter | — | Michigan |
| 49 | Margaret Fontaine | 26 | Daughter | — | Michigan |
| 50 | Ernst F. Brandt | 45 | Head | Porter | Germany |
| 51 | Elise S. Brandt | 43 | Wife | Manager | Germany |
| 52 | Ernst G. Brandt | 16 | Son | — | Germany |
| 53 | Louis E. Bolduc | 65 | Head | Car Repairman | Canada French |
| 54 | Emma M. Bolduc | 58 | Wife | — | Canada French |
| 55 | Grace M. Bolduc | 24 | Daughter | Manager | Canada French |
| 56 | Marcel F. Bolduc | 23 | Son | Cost Clerk | Canada French |
| 57 | Louise A. Bolduc | 20 | Daughter | Saleslady | Canada French |
| 58 | Gabriel D. Bolduc | 16 | Daughter | — | Canada French |
| 59 | Mella M. Bolduc | 14 | Daughter | — | Canada French |
| 60 | Michael J. Miner | 42 | Head | Machine Operator | Pennsylvania |
| 61 | Anna V. Miner | 67 | Mother | — | Czecho Slovakia |
| 62 | Mary M. Miner | 40 | Sister | Saleslady | Montana |
| 63 | Frank J. Kelly | 45 | Head | Manager | Michigan |
| 64 | Ethel M. Kelly | 45 | Wife | — | Ohio |
| 65 | Frank J. Jr. Kelly | 20 | Son | Salesman | Michigan |
| 66 | Barbara J. Kelly | 14 | Daughter | — | Michigan |
| 67 | Jack W. Kelly | 10 | Son | — | Michigan |
| 68 | Lois C. Kelly | 7 | Daughter | — | Michigan |
| 69 | Michael J. Leddy | 51 | Head | Wine Study Engineer | Michigan |
| 70 | Harriet E. Leddy | 46 | Wife | — | Michigan |
| 71 | Albert M. Webber | 26 | Son in law | Printer | Michigan |
| 72 | Margaret Webber | 24 | Daughter | Teacher | Michigan |
| 73 | Patrick M. Hurley | 66 | Head | Market Master | Massachusetts |
| 74 | Catherine Hurley | 64 | Wife | Milliner | Pennsylvania |
| 75 | Roy L. Bratton | 53 | Head | Foreman | Pennsylvania |
| 76 | Lillian M. Bratton | 57 | Wife | — | England |
| 77 | Melvin R. Wilson | 31 | Head | Manager | Ohio |
| 78 | Esther M. Wilson | 25 | Wife | Saleslady | Michigan |
| 79 | Colin F. Keating | 44 | Head | District Manager | Michigan |
| 80 | Edna P. Keating | 44 | 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)