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Mary Mcmillan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Wayne, Michigan
Our Model Tree links this Mary Mcmillan across the 1930 and 1940 US Censuses in Wayne, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 15-person household.
Age 20
b. ~1910
Female
Daughter
Born: Michigan
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Wayne, Michigan |
| Surname | McMillan |
| Given Name | Mary R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Grosse Pointe Park Village |
| Est. Birth Year | ~1910 |
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.
15 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edith Currie | Other | — | 41 | ~1889 |
| James Mcmillan | Son | — | 15 | ~1915 |
| Agnes Churps | Other | — | 48 | ~1882 |
| Jessie Jackson | Other | — | 26 | ~1904 |
| Anne Mcmillan | Spouse | — | 44 | ~1886 |
| Jeanette Billie | Other | — | 44 | ~1886 |
| Louisa Drake | Other | — | 54 | ~1876 |
| Anne Mcmillan | Daughter | — | 7 | ~1923 |
| Euphemia Birrell | Other | — | 20 | ~1910 |
| Helen Mcmillan | Daughter | — | 21 | ~1909 |
| Mary Mcmillan | Daughter | — | 20 | ~1910 |
| Mina Moffat | Other | — | 31 | ~1899 |
| James Mcmillan | Head | — | 45 | ~1885 |
| William Mcmillan | Son | — | 12 | ~1918 |
| Elsie Mcmillan | Daughter | — | 13 | ~1917 |
Census Appearances
1930
Wayne, Michigan
Daughter, age 20
Wayne, Michigan · implied b. ~1910 — 15 household members
| Surname | McMillan |
| Given Name | Mary R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Spouse, age 31
Wayne-County, Michigan · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMillan |
| Given Name | Margaret D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 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 Mcmillan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcmillan
Daughter · 1930 · age 20 · b. ~1910 · Michigan
★ You are viewing this record
Sibling
William Mcmillan
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mcmillan
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcmillan
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anne Mcmillan
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elsie Mcmillan
Sibling · 1930 · age 13
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
1930 US Federal Census — Wayne, Michigan
Open full size
1930 US Federal Census — Wayne, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel1072:0239)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James T Mcmillan | 45 | Head | Vice-President | Michigan |
| 2 | Anne R Mcmillan | 44 | Wife | — | Michigan |
| 3 | Helen R Mcmillan | 21 | Daughter | — | Michigan |
| 4 | Mary R Mcmillan THIS PERSON | 20 | Daughter | — | Michigan |
| 5 | James Mcmillan | 15 | Son | — | Michigan |
| 6 | Elsie Mcmillan | 13 | Daughter | — | Michigan |
| 7 | William C Mcmillan | 12 | Son | — | Michigan |
| 8 | Anne Mcmillan | 7 | Daughter | — | Michigan |
| 9 | Edith Currie | 41 | Servant | Servant | England |
| 10 | Agnes Churps | 48 | Servant | Servant | Irish Free State |
| 11 | Mina Moffat | 31 | Servant | Servant | Scotland |
| 12 | Louisa A Drake | 54 | Servant | Servant | England |
| 13 | Euphemia Birrell | 20 | Servant | Servant | Scotland |
| 14 | Jessie Jackson | 26 | Servant | Servant | Scotland |
| 15 | Jeanette Billie | 44 | Servant | Nurse | New York |
| 16 | Ray Baker | 37 | Head | Chauffeur | Michigan |
| 17 | Ida Baker | 35 | Wife | — | New York |
| 18 | Evelyn I Baker | 12 | Daughter | — | Michigan |
| 19 | Betty M Baker | 4 | Daughter | — | Michigan |
| 20 | Milton S Bangs | 32 | Head | Broker | Maine |
| 21 | Leona B Bangs | 32 | Wife | — | Maine |
| 22 | Milton S Jr Bangs | 11 | Son | — | Maine |
| 23 | Elizabeth D Bangs | 6 | Daughter | — | Canada-English |
| 24 | Isabell William | 58 | Servant | Servant | Georgia |
| 25 | George S Schuyler | 33 | Head | Sales Manager | Minnesota |
| 26 | Geraldine Schuyler | 29 | Wife | — | Nebraska |
| 27 | George S Jr Schuyler | 5 | Son | — | Michigan |
| 28 | Grace Pandel | 30 | Servant | Servant | Alabama |
| 29 | Albert H Zimmerman | 45 | Head | President | Illinois |
| 30 | Lottie R Zimmerman | 42 | Wife | — | Wisconsin |
| 31 | Beryl Zimmerman | 20 | Daughter | — | Michigan |
| 32 | Ruth Zimmerman | 18 | Daughter | — | Michigan |
| 33 | Ellen J Zimmerman | 12 | Daughter | — | Michigan |
| 34 | Susan D Zimmerman | 9 | Daughter | — | Ohio |
| 35 | Katherine Zimmerman | 72 | Mother | — | Germany |
| 36 | Lillie Blonski | 20 | Servant | Servant | Germany |
| 37 | Earle W Parcells | 31 | Head | Broker | Connecticut |
| 38 | Mina D Parcells | 30 | Wife | — | Wyoming |
| 39 | Earle W Jr Parcells | 5 | Son | — | Michigan |
| 40 | Florence W Parcells | 2 | Daughter | — | Michigan |
| 41 | Gertrude Henkel | 30 | Maid | Servant | Michigan |
| 42 | Emma Pippel | 25 | Servant | Servant | Michigan |
| 43 | Christine D Ridget | 58 | Servant | Nurse | Kentucky |
| 44 | Dale W Baker | 42 | Head | Vice-President | Pennsylvania |
| 45 | Lillian R Baker | 32 | Wife | — | Michigan |
| 46 | Dale W Jr Baker | 13 | Son | — | Michigan |
| 47 | Ray C Baker | 8 | Son | — | Michigan |
| 48 | Ellen Woodland | 44 | Servant | Servant | Tennessee |
| 49 | — | None | — | — | — |
| 50 | — | None | — | — | — |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)