JP
John Parker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bay-County, Michigan
Our Model Tree links this John Parker across the 1920, 1930 and 1940 US Censuses in Bay-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 5-person household.
Age 51
b. ~1889
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bay-County, Michigan |
| Surname | Parker |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Bay City |
| Additional Details | |
| Occupation | Machinist |
| Industry | Private Estate |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 326 |
| Highest Grade | No 4 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Machinist |
| Township / Ward | Bay City |
| Est. Birth Year | ~1889 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Saray Parker | Daughter | — | 18 | ~1922 |
| John Parker | Head | — | 51 | ~1889 |
| George Parker | Son | — | 15 | ~1925 |
| Donald Parker | Son | — | 13 | ~1927 |
| Martha Parker | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Bay, Michigan
Head, age 31
Bay, Michigan · implied b. ~1889 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Ohio |
| Occupation | Machinist |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Bay, Michigan
Head, age 41
Bay, Michigan · implied b. ~1889 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 22 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Machinist |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Bay-County, Michigan
Head, age 51
Bay-County, Michigan · implied b. ~1889 — 5 household members
| Surname | Parker |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Bay City |
| Occupation | Machinist |
| Industry | Private Estate |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 326 |
| Highest Grade | No 4 |
| 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 Parker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Parker
Head · 1940 · age 51 · b. ~1889 · 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 — Bay-County, Michigan
Open full size
1940 US Federal Census — Bay-County, Michigan
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-01728-00287)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mark R Dennis | 18 | Son | Machine Operator | Michigan |
| 5 | Sarah J Hennan | 64 | Head | — | Canadian English |
| 6 | Sarah Julia Hennan | 36 | Daughter | Vat Tender | Michigan |
| 7 | Walter Raymond Hennan | 17 | Son | — | Michigan |
| 8 | John Parker THIS PERSON | 51 | Head | Machinist | Michigan |
| 9 | Martha Parker | 41 | Wife | — | Michigan |
| 10 | Saray Parker | 18 | Daughter | — | Michigan |
| 11 | George Parker | 15 | Son | — | Michigan |
| 12 | Donald Parker | 13 | Son | — | Michigan |
| 13 | Marshal Famway | 46 | Head | Machinist | Michigan |
| 14 | Ella Famway | 44 | Wife | — | Scotland |
| 15 | Harold Famway | 17 | Son | — | Michigan |
| 16 | Henry Famway | 13 | Son | — | Michigan |
| 17 | Erwin Famway | 11 | Son | — | Michigan |
| 18 | Thomas Famway | 8 | Son | — | Michigan |
| 19 | Marie A Famway | 82 | Mother | — | Canadian French |
| 20 | Eugene Secor | 75 | Head | — | New York |
| 21 | Mary A Secor | 72 | Wife | — | Michigan |
| 22 | Elaine Freeman | 25 | Head | Saleslady | Michigan |
| 25 | Carl A Parmenter | 32 | Head | Machine Operator | Michigan |
| 26 | Adele Parmenter | 25 | Wife | — | Michigan |
| 27 | Thina Jean Parmenter | 2 | Daughter | — | Michigan |
| 28 | Carla June Parmenter | 1 | Daughter | — | Michigan |
| 29 | Flossie Gregg | 53 | Head | Saleslady | Michigan |
| 30 | Rubie Gregg | 18 | Sister-in-law | — | Michigan |
| 31 | Lloyd Davis | 39 | Head | Wet Sander | Michigan |
| 32 | Jennie O Davis | 35 | Wife | — | Michigan |
| 33 | Franklin W Davis | 14 | Son | — | Michigan |
| 34 | Lloyd R Davis | 10 | Son | — | Michigan |
| 35 | Dorothy Jean Davis | 8 | Daughter | — | Michigan |
| 36 | Mary Ella Davis | 3 | Daughter | — | Michigan |
| 37 | John J Wolff | 52 | Head | Welder | Michigan |
| 38 | Stella Wolff | 51 | Wife | — | Michigan |
| 39 | John J Jr Wolff | 20 | Son | Helper Jr Machinist | Michigan |
| 40 | Eugene Wolff | 17 | Son | Tree Worker | 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)