MK
Mary Kerr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Mary Kerr across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 5-person household.
Age 17
b. ~1923
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Kerr |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| Additional Details | |
| Occupation | 37 |
| Industry | Tabulator |
| Class of Worker | Auto factory |
| Highest Grade | H-2 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | 37 |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1923 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Kerr | Daughter | — | 17 | ~1923 |
| Roamer Kerr | Head | — | 47 | ~1893 |
| Evelyn Kerr | Spouse | — | 46 | ~1894 |
| Bonnie Bomberg | Daughter | — | 20 | ~1920 |
| Judith Bomberg | Other | — | 1 | ~1939 |
Census Appearances
1930
Wayne, Michigan
Daughter, age 6
Wayne, Michigan · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Corr |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Daughter, age 17
Wayne-County, Michigan · implied b. ~1923 — 5 household members
| Surname | Kerr |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| Occupation | 37 |
| Industry | Tabulator |
| Class of Worker | Auto factory |
| Highest Grade | H-2 |
| 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 Mary Kerr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kerr
Daughter · 1940 · age 17 · b. ~1923 · Michigan
★ You are viewing this record
Sibling
Bonnie Bomberg
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-t0627-01884-00388)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Myrtil Van Atta | 39 | Lodger | Nurse | Illinois |
| 42 | Rolland Nancarrow | 33 | Head | Teacher | Michigan |
| 43 | Annabelle Nancarrow | 34 | Wife | — | Michigan |
| 44 | William Nancarrow | 62 | Father | Traveling Salesman | England |
| 45 | John H Rikel | 31 | Head | General Manager | Michigan |
| 46 | Elaine E Rikel | 32 | Wife | — | Michigan |
| 47 | John M V Rikel | 1 | Son | — | Michigan |
| 48 | Enda Block No 23 Beginning Block No 24 | None | — | — | — |
| 49 | Carl Long | 32 | Head | 48 | Michigan |
| 50 | Ann J Long | 31 | Wife | — | Michigan |
| 51 | Donald S Benedict | 33 | Head | Proprietor | Ontario |
| 52 | Zelda V Benedict | 33 | Wife | — | Ohio |
| 53 | Donna Benedict | 7 | Daughter | — | Michigan |
| 54 | Roamer Kerr | 47 | Head | 40 | Pennsylvania |
| 55 | Evelyn E Kerr | 46 | Wife | — | Michigan |
| 56 | Mary M Kerr THIS PERSON | 17 | Daughter | 37 | Michigan |
| 57 | Bonnie Bomberg | 20 | Daughter | 37 | Michigan |
| 58 | Judith Bomberg | 1 | Granddaughter | — | Michigan |
| 59 | George W Kline | 31 | Head | 40 | Michigan |
| 60 | Lillian E Kline | 29 | Wife | — | Michigan |
| 61 | Claude R Baribeau | 43 | Head | 40 | Michigan |
| 62 | Gladys Baribeau | 38 | Wife | — | Michigan |
| 63 | John Leroy Baribeau | 4 | Son | — | Michigan |
| 64 | John A Shelton | 50 | Head | 48 | Michigan |
| 65 | Lucille Shelton | 42 | Wife | — | Michigan |
| 66 | Ellen Shelton | 22 | Daughter | 48 | Michigan |
| 67 | George F Rowan | 43 | Head | 35 | Michigan |
| 68 | Alma Rowan | 38 | Wife | — | Michigan |
| 69 | Donald W Rowan | 9 | Son | — | Michigan |
| 70 | Arthur J Trofant | 51 | Head | 40 | Sweden |
| 71 | Hilma E Trofant | 51 | Wife | — | Sweden |
| 72 | Glen A Trofant | 24 | Son | 37 | Michigan |
| 73 | Hazel E Trofant | 17 | Daughter | — | Michigan |
| 74 | Alex Mcmillan | 52 | Head | Stone Cutter | Scotland |
| 75 | Alice Mcmillan | 59 | Wife | — | England |
| 76 | Alice M Mcmillan | 12 | Daughter | — | Michigan |
| 77 | Hubert J Long | 50 | Head | 48 | Kentucky |
| 78 | Helen Long | 44 | Wife | — | Michigan |
| 79 | Alice J Long | 20 | Daughter | 41 | Michigan |
| 80 | Mary Ann Long | 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)