MR
Mary Rich — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Mary Rich across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Rich |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1928 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alice Rich | Spouse | — | 31 | ~1909 |
| Mary Rich | Daughter | — | 12 | ~1928 |
| John Rich | Son | — | 4 | ~1936 |
| Rose Rich | Daughter | — | 8 | ~1932 |
| Mabel Rich | Daughter | — | ~1940 | |
| James Rich | Son | — | 14 | ~1926 |
| Alfred Rich | Son | — | 11 | ~1929 |
| John Rich | Head | — | 51 | ~1889 |
Census Appearances
1930
Wayne, Michigan
Daughter, age 2
Wayne, Michigan · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Rich |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Daughter, age 12
Wayne-County, Michigan · implied b. ~1928 — 8 household members
| Surname | Rich |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| Highest Grade | 7 |
| 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 Mary Rich across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Rich
Daughter · 1940 · age 12 · b. ~1928 · Michigan
★ You are viewing this record
Sibling
Alfred Rich
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mabel Rich
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Rich
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Rich
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Rich
Sibling · 1940 · age 8
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
18 people indexed on this census page (nara:1940:m-t0627-01851-00747)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Neef | 39 | Head | Laborer | Illinois |
| 2 | Lulu Neef | 38 | Wife | — | Michigan |
| 3 | Walter Neef | 18 | Son | New Worker | Michigan |
| 4 | Dorothy Neef | 13 | Daughter | — | Michigan |
| 5 | Patrick Neef | 9 | Son | — | Michigan |
| 6 | Carl Neef | 5 | Son | — | Michigan |
| 7 | Louise Carpenter | 41 | Cousin | — | Michigan |
| 8 | John Rich | 51 | Head | Janitor | Italy |
| 9 | Alice Rich | 31 | Wife | — | Michigan |
| 10 | James Rich | 14 | Son | — | Michigan |
| 11 | Mary Rich THIS PERSON | 12 | Daughter | — | Michigan |
| 12 | Alfred Rich | 11 | Son | — | Michigan |
| 13 | Rose Rich | 8 | Daughter | — | Michigan |
| 14 | John Rich | 4 | Son | — | Michigan |
| 15 | Mabel Rich | 0 | Daughter | — | Michigan |
| 16 | Reginald Hopkins | 34 | Head | Truck Driver | England |
| 17 | Elizabeth Hopkins | 33 | Wife | — | Canada-English |
| 18 | Barbara Jean Hopkins | 1 | Daughter | — | Michigan |
Related Census Records
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)