MM
Mary Maher — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Mary Maher across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 12-person household.
Age 13
b. ~1927
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Maher |
| Given Name | Mary Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1927 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Maher | Daughter | — | 10 | ~1930 |
| Mary Maher | Daughter | — | 13 | ~1927 |
| James Maher | Son | — | 16 | ~1924 |
| Ann Maher | Daughter | — | 15 | ~1925 |
| Jack Maher | Son | — | 18 | ~1922 |
| Barbara Maher | Daughter | — | 5 | ~1935 |
| Mary Maher | Spouse | — | 32 | ~1908 |
| Lizzie Smith | Other | — | 34 | ~1906 |
| John Maher | Head | — | 50 | ~1890 |
| Yvonne Maher | Daughter | — | 10 | ~1930 |
| Thomas Maher | Son | — | 5 | ~1935 |
| Cecilia Maher | Daughter | — | ~1940 |
Census Appearances
1930
Wayne, Michigan
Daughter, age 2
Wayne, Michigan · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Maher |
| Given Name | Mildred E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Daughter, age 13
Wayne-County, Michigan · implied b. ~1927 — 12 household members
| Surname | Maher |
| Given Name | Mary Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Highest Grade | No 6 |
| 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 Maher across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Maher
Daughter · 1940 · age 13 · b. ~1927 · Michigan
★ You are viewing this record
Sibling
James Maher
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Maher
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Maher
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cecilia Maher
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Maher
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Yvonne Maher
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Maher
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Maher
Sibling · 1940 · age 5
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
39 people indexed on this census page (nara:1940:m-t0627-01842-00309)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph F. Gorey | 52 | Head | Proprietor | Michigan |
| 2 | Lucille M. Gorey | 47 | Wife | — | Michigan |
| 3 | Fred Gorey | 22 | Son | — | Michigan |
| 4 | Frank Gorey | 20 | Son | Apprentice | Michigan |
| 5 | John Gorey | 16 | Son | — | Michigan |
| 6 | Mary Jo Gorey | 3 | Daughter | — | Michigan |
| 7 | John J. Maher | 50 | Head | Judge | Michigan |
| 8 | Mary Maher | 32 | Wife | — | Michigan |
| 9 | Jack Maher | 18 | Son | Chauffeur | Michigan |
| 10 | James Ab Maher | 16 | Son | — | Michigan |
| 11 | Ann Ab Maher | 15 | Daughter | — | Michigan |
| 12 | Mary Catherine Maher THIS PERSON | 13 | Daughter | — | Michigan |
| 13 | Yvonne Ab Maher | 10 | Daughter | — | Michigan |
| 14 | Margaret Maher | 10 | Daughter | — | Michigan |
| 15 | Barbara Ab Maher | 5 | Daughter | — | Michigan |
| 16 | Thomas Maher | 5 | Son | — | Michigan |
| 17 | Cecilia Maher | 0 | Daughter | — | Michigan |
| 18 | Lizzie Smith | 34 | Maid | Maid | Georgia |
| 19 | James E. Meager | 40 | Head | Manager | Michigan |
| 20 | Margaret Meager | 38 | Wife | — | Michigan |
| 21 | James E. Jr. Meager | 16 | Son | — | Michigan |
| 22 | Vincent Meager | 14 | Son | — | Michigan |
| 23 | Margaret Meager | 10 | Daughter | — | Michigan |
| 24 | Rosa Reed | 32 | Maid | Maid | Louisiana |
| 25 | Goodsell O'Keefe | 53 | Head | District Manager | Michigan |
| 26 | Theresa O'Keefe | 45 | Wife | — | Tennessee |
| 27 | Ann Claire O'Keefe | 21 | Daughter | Dental Assistant | Michigan |
| 28 | Mary Jane O'Keefe | 16 | Daughter | — | Michigan |
| 29 | Lloyd C. Moser | 47 | Head | Civil Engineer | Michigan |
| 30 | Rita K. B. Moser | 44 | Wife | — | Michigan |
| 31 | Marie C. Moser | 16 | Daughter | — | Michigan |
| 32 | Margaret Moser | 13 | Daughter | — | Michigan |
| 33 | Ruth P. Moser | 8 | Daughter | — | Michigan |
| 34 | Harold R. Parke | 42 | Brother-in-law | Cabinet Maker | Pennsylvania |
| 35 | Charles B. Vial | 53 | Head | President | Austria |
| 36 | Bertha Vial | 53 | Wife | — | Pennsylvania |
| 38 | Charles Oakman | 36 | Head | Stenographer | Michigan |
| 39 | Mary Oakman | 37 | Wife | — | Illinois |
| 40 | Charles Jr. Oakman | 12 | Son | — | 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)