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John Sparks — 1940 US Census Record
Model Tree available1940 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), with identified parents John & Ada — first a head (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Sparks |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Manager |
| Industry | Retail Shoe |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 3600 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Manager |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1908 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Sparks | Head | — | 32 | ~1908 |
| Lois Sparks | Spouse | — | 29 | ~1911 |
| Julie Sparks | Daughter | — | 1 | ~1939 |
Census Appearances
1920
Wayne, Michigan
Son, age 12
Wayne, Michigan · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sparkes |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | England |
| Year of Immigration | 1912 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Year of Naturalization | 1918 |
| Birthplace (normalized) | england |
1930
Wayne, Michigan
Son, age 22
Wayne, Michigan · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sparks |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1913 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Wayne-County, Michigan
Head, age 32
Wayne-County, Michigan · implied b. ~1908 — 3 household members
| Surname | Sparks |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Occupation | Manager |
| Industry | Retail Shoe |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 3600 |
| Highest Grade | H 4 |
| 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. Identified parents: father John Sparkes (~0.92 confidence) and mother Ada Sparkes (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Sparkes
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Ada Sparkes
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Sparks
Head · 1940 · age 32 · b. ~1908 · 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
39 people indexed on this census page (nara:1940:m-t0627-01889-00417)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Sparks THIS PERSON | 32 | Head | Manager | England |
| 2 | Lois Sparks | 29 | Wife | — | Michigan |
| 3 | Julie Sparks | 1 | Daughter | — | Michigan |
| 4 | Udendall Le Ray | 28 | Head | Salesman | Michigan |
| 5 | Jean Le Ray | 29 | Wife | Supervisor | Michigan |
| 6 | Clark Ashley | 35 | Head | Supervisor | Michigan |
| 7 | Esther Ashley | 32 | Wife | — | Illinois |
| 8 | Loren Ashley | 3 | Son | — | Michigan |
| 9 | Edward Lutz | 39 | Head | Real Estate | Michigan |
| 10 | Leona Lutz | 39 | Wife | — | Michigan |
| 11 | Norene Lutz | 14 | Daughter | — | Michigan |
| 12 | Nancy Lutz | 10 | Daughter | — | Michigan |
| 13 | Charles Lutz | 7 | Son | — | Michigan |
| 15 | Arthur G. Olson | 35 | Head | Tool And Die Maker | Wisconsin |
| 16 | Vernie Olson | 36 | Wife | — | Greece |
| 17 | Arthur Jr. Olson | 13 | Son | — | Wisconsin |
| 18 | Beverly Olson | 11 | Daughter | — | Wisconsin |
| 19 | Audrey Olson | 8 | Daughter | — | Wisconsin |
| 20 | Thomas Calvert | 42 | Head | Salesman | Greece |
| 21 | Theresa Calvert | 33 | Wife | Cashier | France |
| 22 | Quentin Calvert | 10 | Son | — | Michigan |
| 23 | Edward Mackey | 23 | Lodger | Clerk Drug Store | Michigan |
| 24 | Lucinia Mackey | 19 | Wife | — | Michigan |
| 25 | Eldred I. Hillman | 32 | Head | Installer | Michigan |
| 26 | Elsie Hillman | 32 | Wife | — | Michigan |
| 27 | Delmer Darling | 31 | Head | Gas Station Operator | Canada |
| 28 | Margaret Darling | 32 | Wife | — | Pennsylvania |
| 29 | Charles G. Thomas | 45 | Head | Gear Dept Foreman | Ohio |
| 30 | Sadie Thomas | 49 | Wife | — | Ohio |
| 31 | Charles G. Jr. Thomas | 19 | Son | — | Michigan |
| 32 | Ida Thomas | 67 | Mother | — | Ohio |
| 33 | Edward Donovan | 40 | Head | Traffic | Michigan |
| 34 | Jean Donovan | 35 | Wife | — | Canada |
| 35 | Catherine Donovan | 6 | Daughter | — | Michigan |
| 36 | Margaret Donovan | 2 | Daughter | — | Michigan |
| 37 | Pearl Burish | 19 | Maid | Housework | Canada |
| 38 | Walter Armstrong | 48 | Head | Experimental | Scotland |
| 39 | Mary Armstrong | 44 | Wife | — | Scotland |
| 40 | Mary Armstrong | 14 | Daughter | — | Scotland |
Pedigree Summary
John
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)