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John Sparks — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this John Sparks across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 5-person household.
Age 53
b. ~1887
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Sparks |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Outside Inspector |
| Industry | Real Estate Office |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 3000 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Outside Inspector |
| Township / Ward | Detroit |
| Est. Birth Year | ~1887 |
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 |
|---|---|---|---|---|
| Doris Sparks | Daughter | — | 15 | ~1925 |
| William Williams | Other | — | 36 | ~1904 |
| Stanley Sparks | Son | — | 22 | ~1918 |
| Ada Sparks | Spouse | — | 55 | ~1885 |
| John Sparks | Head | — | 53 | ~1887 |
Census Appearances
1920
Wayne, Michigan
Head, age 35
Wayne, Michigan · implied b. ~1885 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sparkes |
| Given Name | John T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1912 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Mechanist |
| Industry | Auto Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | England |
| Year of Naturalization | 1918 |
| Birthplace (normalized) | england |
1930
Wayne, Michigan
Head, age 44
Wayne, Michigan · implied b. ~1886 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sparks |
| Given Name | John S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1913 |
| Age at First Marriage | 20 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Manager |
| Industry | Apartment Bldg |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 55 |
| Radio Set | R |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Wayne-County, Michigan
Head, age 53
Wayne-County, Michigan · implied b. ~1887 — 5 household members
| Surname | Sparks |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Occupation | Outside Inspector |
| Industry | Real Estate Office |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 3000 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Sparks across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Sparks
Head · 1940 · age 53 · b. ~1887 · Michigan
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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
18 people indexed on this census page (nara:1940:m-t0627-01869-00741)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Evelyn Todd | 22 | Daughter | Stenographer | Michigan |
| 42 | Jack Todd | 19 | Son | Pin Setter | Michigan |
| 43 | Margaret Todd | 17 | Daughter | — | Michigan |
| 44 | John J Sparks THIS PERSON | 53 | Head | Outside Inspector | England |
| 45 | Ada G Sparks | 55 | Wife | — | England |
| 46 | Stanley Sparks | 22 | Son | Decorator | Michigan |
| 47 | Doris Sparks | 15 | Daughter | — | Michigan |
| 48 | William Williams | 36 | Lodger | Janitor | England |
| 49 | Frank Hebert | 46 | Head | Roofer | Michigan |
| 50 | Marie Hebert | 40 | Wife | — | Michigan |
| 51 | Frank Jr Hebert | 22 | Son | Auto Worker | Michigan |
| 52 | Robert Hebert | 18 | Son | New Worker | Michigan |
| 53 | Richard Hebert | 16 | Son | — | Michigan |
| 54 | Rita Hebert | 16 | Daughter | — | Michigan |
| 55 | Russell Tabor | 38 | Head | Assistant Ticket Agent | Michigan |
| 56 | Harriet Tabor | 41 | Wife | — | Ohio |
| 57 | Russell Tabor | 18 | Son | New Worker | Michigan |
| 58 | Alice Tabor | 17 | Daughter | — | 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)