ME
Mary Ellis — 1930 US Census Record
Model Tree available1930 United States Federal Census · Norfolk, Massachusetts
Our Model Tree links this Mary Ellis across the 1910, 1920 and 1930 US Censuses in Norfolk, Massachusetts (XGBoost, ~Confirmed), with identified parents Catherine & Oscar — first a daughter (b.~1900), then head of a 4-person household.
Age 30
b. ~1900
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Norfolk, Massachusetts |
| Surname | Ellis |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Laborer |
| Industry | Brake Lining |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Laborer |
| Township / Ward | Walpole Village |
| Est. Birth Year | ~1900 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Ellis | Daughter | — | 30 | ~1900 |
| Oscar Ellis | Head | — | 57 | ~1873 |
| John Ellis | Son | — | 20 | ~1910 |
| Margaret Ellis | Spouse | — | 55 | ~1875 |
Census Appearances
1910
Norfolk, Massachusetts
Daughter, age 9
Norfolk, Massachusetts · implied b. ~1901 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ellis |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Norfolk, Massachusetts
Daughter, age 19
Norfolk, Massachusetts · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ellis |
| Given Name | Marion E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Norfolk, Massachusetts
Daughter, age 30
Norfolk, Massachusetts · implied b. ~1900 — 4 household members
| Surname | Ellis |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Laborer |
| Industry | Brake Lining |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Ellis across 3 US Census years (1910, 1920 and 1930) in Norfolk, Massachusetts, using XGBoost record linkage. Identified parents: mother Catherine Ellis (~0.92 confidence) and father Oscar Ellis (~0.92 confidence) and father Oscar Ellis (~0.92 confidence) and mother Margaret Ellis (~0.92 confidence) and mother Margaret Ellis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Catherine Ellis
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
Oscar Ellis
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Oscar Ellis
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Margaret Ellis
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Margaret Ellis
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Ellis
Daughter · 1930 · age 30 · b. ~1900 · Massachusetts
★ You are viewing this record
Sibling
John Ellis
Sibling · 1930 · 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
1930 US Federal Census — Norfolk, Massachusetts
Open full size
1930 US Federal Census — Norfolk, Massachusetts
Page Contents
49 people indexed on this census page (ia:1930:massachusettscensus00reel937:0678)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Kirchoff | 4 | Son | — | Massachusetts |
| 2 | Clifton B. Bradford | 54 | Head | Treasurer | Massachusetts |
| 3 | Elizabeth M. Bradford | 52 | Wife | — | Massachusetts |
| 4 | Maynard Dykstra | 68 | Head | — | Holland |
| 5 | Effie Dykstra | 75 | Wife | — | Holland |
| 6 | James Ahearn | 56 | Head | Laborer | Massachusetts |
| 7 | Annie Ahearn | 56 | Wife | — | Massachusetts |
| 8 | Johanna Delaney | 79 | Head | — | Ireland-Free State |
| 9 | Leonard Brownson | 42 | Head | Carpenter | Finland |
| 10 | Hilda Brownson | 42 | Wife | General Housework | Finland |
| 11 | Oliver Brownson | 15 | Son | — | Massachusetts |
| 12 | Ingrid Brownson | 14 | Daughter | — | Massachusetts |
| 13 | Michael Connolly | 29 | Head | Chauffeur | Massachusetts |
| 14 | Irene A. Connolly | 30 | Wife | — | Massachusetts |
| 15 | Marguerite Connolly | 4 | Daughter | — | Massachusetts |
| 16 | Robert J. Connolly | 3 | Son | — | Massachusetts |
| 17 | Joseph E. Connolly | 1 | Son | — | Massachusetts |
| 18 | Thomas Connolly | 0 | Son | — | Massachusetts |
| 19 | William E. Livi | 21 | Head | Laborer | Massachusetts |
| 20 | Blanche S. Livi | 18 | Wife | — | Massachusetts |
| 21 | William Jr. Livi | 2 | Son | — | Massachusetts |
| 22 | Gertrude S. Livi | 0 | Daughter | — | Massachusetts |
| 23 | Ellen D. Smith | 57 | Head | Laborer | Massachusetts |
| 24 | George M. Smith | 32 | Son | Iceman | Massachusetts |
| 25 | Robert E. Mahan | 43 | Head | Core Maker | Massachusetts |
| 26 | Mary J. Mahan | 41 | Wife | — | Ireland-Free State |
| 27 | John J. Mahan | 20 | Son | — | Massachusetts |
| 28 | Madeline A. Mahan | 15 | Daughter | — | Massachusetts |
| 29 | Joseph E. Mahan | 10 | Son | — | Massachusetts |
| 30 | James P. Mahan | 4 | Son | — | Massachusetts |
| 31 | Adolph Healman | 40 | Head | Carpenter | Finland |
| 32 | Annie Healman | 40 | Wife | — | Finland |
| 33 | Oscar F. Ellis | 57 | Head | Laborer | Massachusetts |
| 34 | Margaret E. Ellis | 55 | Wife | — | Massachusetts |
| 35 | John J. Ellis | 20 | Son | Laborer | Massachusetts |
| 36 | Mary A. Ellis THIS PERSON | 30 | Daughter | Laborer | Massachusetts |
| 37 | James E. Smith | 49 | Head | Lineman | Scotland |
| 38 | Phoebe Smith | 34 | Wife | — | Newfoundland |
| 39 | Robert Smith | 14 | Son | — | Massachusetts |
| 40 | Isabelle Smith | 12 | Daughter | — | Massachusetts |
| 41 | Gilbert Smith | 10 | Son | — | Massachusetts |
| 42 | Dorothy M. Smith | 8 | Daughter | — | Massachusetts |
| 43 | Maude E. Smith | 7 | Daughter | — | Massachusetts |
| 44 | Albert G. Smith | 2 | Son | — | Massachusetts |
| 45 | Edward E. Lindle | 33 | Head | Salesman | Maine |
| 46 | Amy B. Lindle | 39 | Wife | — | Maine |
| 47 | Marjorie Sprague | 16 | Step-dau | — | Maine |
| 48 | Nick Stark | 33 | Head | Boxmaker | Lithuania |
| 49 | Albina Stark | 33 | Wife | — | Lithuania |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)