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James Blake — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this James Blake across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 7-person household.
Age 19
b. ~1921
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Blake |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| Additional Details | |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1921 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| George Blake | Son | — | 22 | ~1918 |
| John Blake | Head | — | 55 | ~1885 |
| Gerald Blake | Son | — | 20 | ~1920 |
| John Blake | Son | — | 24 | ~1916 |
| Frances Blake | Son | — | 15 | ~1925 |
| Bertha Blake | Spouse | — | 52 | ~1888 |
| James Blake | Son | — | 19 | ~1921 |
Census Appearances
1930
Wayne, Michigan
Son, age 7
Wayne, Michigan · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blake |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Mississippi |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Son, age 19
Wayne-County, Michigan · implied b. ~1921 — 7 household members
| Surname | Blake |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| Highest Grade | H 3 |
| 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 James Blake across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Blake
Son · 1940 · age 19 · b. ~1921 · Michigan
★ You are viewing this record
Sibling
John Blake
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Blake
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Blake
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Blake
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
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
40 people indexed on this census page (nara:1940:m-t0627-01876-00015)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Roberta Auten | 16 | friend | — | Canada |
| 42 | Charles Halenk | 44 | boarder | Lineman | Pennsylvania |
| 43 | Margaret Halenk | 45 | maid | Housework | Germany |
| 44 | Frank J. Weber | 69 | head | Lumberman | Michigan |
| 45 | Florence K. Weber | 63 | wife | — | Michigan |
| 46 | Viola Manning | 48 | maid | Housework | Indiana |
| 47 | — | None | — | — | — |
| 48 | Joseph Kales | 45 | head | Photographer | Illinois |
| 49 | May Kales | 47 | wife | Sr. Clerk | Michigan |
| 50 | Thomas Kirkel | 41 | in-law | — | Michigan |
| 51 | Sam Avedisian | 45 | head | Machine Mgr. | New York |
| 52 | Ethel Avedisian | 42 | wife | — | New York |
| 53 | Robert Avedisian | 15 | son | — | New York |
| 54 | Burt Avedisian | 15 | son | — | New York |
| 55 | Tillie Otten | 59 | maid | Housework | Illinois |
| 56 | John M.D. Blake | 55 | head | — | England |
| 57 | Bertha Blake | 52 | wife | — | Michigan |
| 58 | John O. Blake | 24 | son | Property Mgmt. | Michigan |
| 59 | George Blake | 22 | son | — | Michigan |
| 60 | Gerald Blake | 20 | son | — | Michigan |
| 61 | James Blake THIS PERSON | 19 | son | — | Michigan |
| 62 | Frances Blake | 15 | son | — | Michigan |
| 63 | George Nauman | 49 | head | Executive | Ohio |
| 64 | Jessie Nauman | 51 | wife | — | New York |
| 65 | Gerald Nauman | 20 | son | New Worker | Michigan |
| 66 | Arline Harley | 24 | in-law | — | New York |
| 67 | Everett Harley | 45 | in-law | Director | New York |
| 68 | Lewis H. Echlin | 55 | head | Supt. Of Bldg. | Michigan |
| 69 | Edna Echlin | 55 | wife | — | Michigan |
| 70 | Catherine Echlin | 23 | daughter | New Worker | Michigan |
| 71 | Edith Barnes | 30 | maid | Housekeeper | England |
| 72 | Robert E. Milligan | 53 | head | Executive | Ohio |
| 73 | Carrie Milligan | 53 | wife | — | Michigan |
| 74 | Robert E. Jr. Milligan | 23 | son | New Worker | Michigan |
| 75 | Carrie Schweikart | 79 | in-law | — | Michigan |
| 76 | Maude Maxwell | 56 | maid | Housekeeper | Georgia |
| 77 | Julia M. Wilford | 49 | head | — | Ohio |
| 78 | Frances Wilford | 42 | daughter | — | Michigan |
| 79 | James A. Markle | 38 | head | Lawyer | Kansas |
| 80 | Kathleen Markle | 35 | wife | — | 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)