JD
John Dennis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Saginaw-County, Michigan
Our Model Tree links this John Dennis across the 1910, 1920, 1930 and 1940 US Censuses in Saginaw-County, Michigan (XGBoost, ~Confirmed), with identified parents Isaac & Effie — first a head (b.~1900), then head of a 6-person household.
Age 40
b. ~1900
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Saginaw-County, Michigan |
| Surname | Dennis |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Brant |
| 1935 Residence (County) | Saginaw |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 160 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Farmer |
| Township / Ward | Brant |
| Est. Birth Year | ~1900 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Joyce Dennis | Daughter | — | 3 | ~1937 |
| Mabel Dennis | Spouse | — | 27 | ~1913 |
| Earl Dennis | Son | — | 13 | ~1927 |
| John Dennis | Head | — | 40 | ~1900 |
| Marjorie Dennis | Daughter | — | 5 | ~1935 |
| Russell Dennis | Son | — | 11 | ~1929 |
Census Appearances
1910
Saginaw, Michigan
Son, age 11
Saginaw, Michigan · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dennis |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1920
Saginaw, Michigan
Son, age 20
Saginaw, Michigan · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dennis |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Michigan |
| Occupation | Farmer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Saginaw, Michigan
Head, age 30
Saginaw, Michigan · implied b. ~1900
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Dennis |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 26 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Michigan |
| Occupation | Farmer |
| Industry | Gen Farming |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1200 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Saginaw-County, Michigan
Head, age 40
Saginaw-County, Michigan · implied b. ~1900 — 6 household members
| Surname | Dennis |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Brant |
| 1935 Residence (County) | Saginaw |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 160 |
| Highest Grade | 8 |
| 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 Dennis across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Isaac Dennis (~0.92 confidence) and mother Effie Dennis (~0.92 confidence) and mother Effie Dennis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Isaac Dennis
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Effie Dennis
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Effie Dennis
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Dennis
Head · 1940 · age 40 · b. ~1900 · 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 — Saginaw-County, Michigan
Open full size
1940 US Federal Census — Saginaw-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01811-00186)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert Devereaux | 16 | Son | Laborer | Michigan |
| 42 | James Devereaux | 12 | Son | — | Michigan |
| 43 | Kathryn Devereaux | 9 | daughter | — | Michigan |
| 44 | James Mcsuryer|Mcsuryen | 29 | Head | Farmer | Michigan |
| 45 | Mary Eleanor Mcsuryer|Mcsuryen | 28 | wife | — | Michigan |
| 46 | Ann Mcsuryer|Mcsuryen | 7 | daughter | — | Michigan |
| 47 | Donald Mcsuryer|Mcsuryen | 6 | son | — | Michigan |
| 48 | Robert Mcsuryer|Mcsuryen | 4 | son | — | Michigan |
| 49 | Sharon Mcsuryer|Mcsuryen | 2 | daughter | — | Michigan |
| 50 | Melvin Miller | 30 | Head | Farmer | Michigan |
| 51 | Arlene Miller | 23 | wife | — | Michigan |
| 52 | Jean Ann Miller | 1 | daughter | — | Michigan |
| 53 | Lowell Miller | 0 | son | — | Michigan |
| 54 | Chaney Coolidge | 54 | Head | Machine Man | Michigan |
| 55 | Dottie Coolidge | 49 | wife | — | Michigan |
| 56 | Stanley Coolidge | 20 | son | Laborer | Michigan |
| 57 | Myrna Coolidge | 18 | daughter | Housework | Michigan |
| 58 | Adil Coolidge | 15 | son | — | Michigan |
| 59 | George Woolston | 14 | Helper | — | Michigan |
| 60 | Charles Rogers | 65 | Head | Farmer | Michigan |
| 61 | Mary Rogers | 61 | wife | — | Michigan |
| 62 | Leonard Rogers | 24 | son | Laborer | Michigan |
| 63 | Lucille Rogers | 17 | daughter-in-law | — | Michigan |
| 64 | Linda Lou Rogers | 0 | daughter | — | Michigan |
| 65 | George Jones | 76 | Head | — | Canada-English |
| 66 | Goodworth Jones | 78 | wife | — | England |
| 67 | Fred Wright | 53 | Head | Farmer | Michigan |
| 68 | Lucy Wright | 54 | wife | — | Michigan |
| 69 | John Dennis THIS PERSON | 40 | Head | Farmer | Michigan |
| 70 | Mabel Dennis | 27 | wife | — | North Dakota |
| 71 | Earl Dennis | 13 | Son | — | Michigan |
| 72 | Russell Dennis | 11 | Son | — | Michigan |
| 73 | Marjorie Dennis | 5 | daughter | — | Michigan |
| 74 | Joyce Dennis | 3 | daughter | — | Michigan |
| 75 | Charles Cooley | 59 | Head | Farmer | Michigan |
| 76 | Emma Cooley | 57 | wife | — | Michigan |
| 77 | Edison Cooley | 16 | Son | Laborer | Michigan |
| 78 | Ardo Reynolds | None | Head | — | Michigan |
| 79 | Amy Reynolds | None | wife | — | Michigan |
| 80 | Ardis Reynolds | None | daughter | — | Michigan |
Pedigree Summary
John
Gen 1 · 3 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)