JT
James Tracy — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Joseph-County, Michigan
Our Model Tree links this James Tracy across the 1920, 1930 and 1940 US Censuses in St.-Joseph-County, Michigan (XGBoost, ~Confirmed), with identified parents Arnold & Mabel — first a son (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Joseph-County, Michigan |
| Surname | Tracy |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Constantine village |
| 1935 Residence (County) | St. Joseph |
| Additional Details | |
| Occupation | Electrician |
| Industry | Power Manufacturing |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1300 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Electrician |
| Township / Ward | Constantine Village |
| Est. Birth Year | ~1910 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Mabel Tracy | Spouse | — | 59 | ~1881 |
| James Tracy | Son | — | 30 | ~1910 |
| Arnold Tracy | Head | — | 61 | ~1879 |
Census Appearances
1920
St Joseph, …
Son, age 9
St Joseph, Michigan · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tracy |
| Given Name | James A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
St Joseph, …
Son, age 19
St Joseph, Michigan · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tracey |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
St.-Joseph-County, Michigan
Son, age 30
St.-Joseph-County, Michigan · implied b. ~1910 — 3 household members
| Surname | Tracy |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Constantine village |
| 1935 Residence (County) | St. Joseph |
| Occupation | Electrician |
| Industry | Power Manufacturing |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1300 |
| Highest Grade | H 4 |
| 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 James Tracy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arnold Tracy (~0.92 confidence) and mother Mabel Tracy (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arnold Tracy
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Mabel Tracy
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Tracy
Son · 1940 · age 30 · b. ~1910 · 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 — St.-Joseph-County, Michigan
Open full size
1940 US Federal Census — St.-Joseph-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01817-00116)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Myer, Robert Conklin | 16 | Son | Newsboy | Indiana |
| 42 | Richard Conklin | 13 | Son | — | Michigan |
| 43 | Harriett Ann Conklin | 11 | Daughter | — | Michigan |
| 44 | John, Jr. White | 54 | Head | Road Work | Michigan |
| 45 | Elizabeth Chadburn | 58 | Head | — | Pennsylvania |
| 46 | Clarence Barnhart | 55 | Head | Village Marshall | Michigan |
| 47 | Ruth Barnhart | 43 | Wife | — | Michigan |
| 48 | Orrie Lunn | 58 | Head | Mail Carrier | Michigan |
| 49 | Ella Lunn | 60 | Wife | — | Illinois |
| 50 | Hubert Lunn | 21 | Son | Caretaker | Michigan |
| 51 | George Lunn | 18 | Son | Laborer | Michigan |
| 52 | George Pidgeon | 52 | Head | Postmaster | Michigan |
| 53 | Isabell Pidgeon | 48 | Wife | — | Indiana |
| 54 | Loyd Dowty | 25 | Son-in-law | Seamstress | Indiana |
| 55 | Lavera Dowty | 25 | Daughter | — | Michigan |
| 56 | Margaret M. Schall | 63 | Head | — | Pennsylvania |
| 57 | Louise Witt | 76 | Head | — | Germany |
| 58 | Rolland Tomney | 55 | Son-in-law | Proprietor | Michigan |
| 59 | Helen Tomney | 48 | Daughter | Proprietor | Michigan |
| 60 | Donald Porter | 27 | Grandson | Accountant | Michigan |
| 61 | Anita Porter | 23 | Granddaughter-in-law | — | Michigan |
| 62 | Thomas Preston | 53 | Head | Oiler | Indiana |
| 63 | Emma Preston | 54 | Wife | — | Indiana |
| 64 | Wilma Preston | 13 | Daughter | — | Michigan |
| 65 | Olav Flatland | 41 | Head | Superintendent | Norway |
| 66 | Helen Flatland | 36 | Wife | — | Ohio |
| 67 | Nancy Flatland | 9 | Daughter | — | Michigan |
| 68 | Ann Flatland | 6 | Daughter | — | Michigan |
| 69 | Jerry Flatland | 3 | Son | — | Michigan |
| 70 | William H. Smith | 75 | Head | Proprietor | Pennsylvania |
| 71 | Millie M. Smith | 67 | Wife | Proprietor | Michigan |
| 72 | Wallace Harvey | 57 | Head | — | Michigan |
| 73 | Jane Harvey | 48 | Wife | — | Ohio |
| 74 | Arnold Tracy | 61 | Head | Iceman | Michigan |
| 75 | Mabel Tracy | 59 | Wife | — | Michigan |
| 76 | James Tracy THIS PERSON | 30 | Son | Electrician | Michigan |
| 77 | William Thorne | 55 | Head | Cabinet Maker | Indiana |
| 78 | Angelina Thorne | 81 | Mother | — | Indiana |
| 79 | Theresa E. Mcphail | 58 | Daughter | Seamstress | Indiana |
| 80 | Arol Greensides | 35 | Head | Clerk | Michigan |
Pedigree Summary
James
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)