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Mary Mulligan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Genesee-County, Michigan
Our Model Tree links this Mary Mulligan across the 1930 and 1940 US Censuses in Genesee-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Genesee-County, Michigan |
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Oakland |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Forest Twp |
| Est. Birth Year | ~1924 |
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 |
|---|---|---|---|---|
| Jane Mulligan | Daughter | — | 9 | ~1931 |
| Mary Mulligan | Daughter | — | 16 | ~1924 |
| Lulu Mulligan | Spouse | — | 42 | ~1898 |
| Douglas Mulligan | Son | — | 12 | ~1928 |
| Robert Mulligan | Son | — | 14 | ~1926 |
| Craig Mulligan | Son | — | 8 | ~1932 |
| John Mulligan | Son | — | 13 | ~1927 |
| Jas Mulligan | Head | — | 54 | ~1886 |
Census Appearances
1930
Genesee, Michigan
Daughter, age 6
Genesee, Michigan · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Genesee-County, Michigan
Daughter, age 16
Genesee-County, Michigan · implied b. ~1924 — 8 household members
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Oakland |
| Highest Grade | Hs 1 |
| 1935 Residence | Michigan |
| 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 Mulligan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mulligan
Daughter · 1940 · age 16 · b. ~1924 · Michigan
★ You are viewing this record
Sibling
Craig Mulligan
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mulligan
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Mulligan
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Douglas Mulligan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mulligan
Sibling · 1940 · age 14
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 — Genesee-County, Michigan
Open full size
1940 US Federal Census — Genesee-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01750-00022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clarence Blue | 74 | Head | Farmer | Michigan |
| 2 | Elizabeth Blue | 71 | Wife | Housewife | Canada |
| 3 | Lawrence Sweet | 44 | Son | Laborer | Michigan |
| 4 | Alged Traver | 51 | Head | Farmer | Michigan |
| 5 | Hazel Traver | 50 | Wife | Housewife | Michigan |
| 6 | Carol Traver | 23 | Daughter | Telephone Op. | Michigan |
| 7 | Shirley Traver | 17 | Daughter | 8 | Michigan |
| 8 | Wm. G. Crampton | 52 | Head | Farmer | Ireland |
| 9 | Muriel Crampton | 42 | Wife | Housewife | Ohio |
| 10 | Lucal Crampton | 20 | Daughter | Nurse | Michigan |
| 11 | Hope Crampton | 19 | Daughter | Housework | Michigan |
| 12 | Wm. J. Crampton | 15 | Son | — | Michigan |
| 13 | Don E. Crampton | 11 | Son | — | Michigan |
| 14 | Thomas H. Crampton | 7 | Son | — | Michigan |
| 15 | Lee Crampton | 5 | Son | — | Michigan |
| 16 | Lila Crampton | 5 | Daughter | — | Michigan |
| 17 | Grant (X) Traver | 42 | Head | Laborer | Michigan |
| 18 | Grace Traver | 35 | Wife | — | Michigan |
| 19 | Jas. (X) Mulligan | 54 | Head | Farmer | Ireland |
| 20 | Lulu Mulligan | 42 | Wife | — | Michigan |
| 21 | Mary Mulligan THIS PERSON | 16 | Daughter | — | Michigan |
| 22 | Robert Mulligan | 14 | Son | — | Michigan |
| 23 | John Mulligan | 13 | Son | — | Michigan |
| 24 | Douglas Mulligan | 12 | Son | — | Michigan |
| 25 | Jane Mulligan | 9 | Daughter | — | Michigan |
| 26 | Craig Mulligan | 8 | Son | — | Michigan |
| 27 | John N. Harris | 60 | Head | Farmer | Canada |
| 28 | Myra Harris | 56 | Wife | — | Michigan |
| 29 | J. R. Traver | 69 | Head (X) | Farmer | Michigan |
| 30 | Lilian Traver | 69 | Wife | — | Michigan |
| 31 | Ward K. Harris | 38 | Head | Assembly | Michigan |
| 32 | Olive E. Harris | 52 | Wife | Housewife | Michigan |
| 33 | Myrella Harris | 15 | Daughter | — | Michigan |
| 34 | Rita May Harris | 14 | Daughter | — | Michigan |
| 35 | Lewis Lee Harris | 10 | Son | — | Michigan |
| 36 | Kenneth A. Harris | 9 | Son | — | Michigan |
| 37 | Hiram Lynch | 57 | Head (X) | Farmer | Michigan |
| 38 | Edith Lynch | 56 | Wife | Housewife | Michigan |
| 39 | Ralph Lynch | 20 | Son | Book Keeper | 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)