MN
Mary Nichols — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Worcester, Massachusetts
Our Model Tree links this Mary Nichols across the 1910, 1920 and 1930 US Censuses in Worcester, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1871), then head of a 5-person household.
Age 59
b. ~1871
Female
Head
Born: Maine
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Worcester, Massachusetts |
| Surname | Nichols |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Maine |
| Age at First Marriage | 23 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Additional Details | |
| Occupation | Nurse |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 7000 |
| Home Value / Rent | R |
| Veteran | O |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Occupation | Nurse |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1871 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edna Horne | Daughter | — | 22 | ~1908 |
| Martha Nichols | Daughter | — | 19 | ~1911 |
| Mary Nichols | Head | — | 59 | ~1871 |
| Fred Horne | Other | — | 32 | ~1898 |
| Eugene Nichols | Son | — | 25 | ~1905 |
Census Appearances
1910
Worcester, Massachusetts
Spouse, age 39
Worcester, Massachusetts · implied b. ~1871 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholas |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Maine |
| Years Married | 19 |
| Children Born | 4 |
| Children Living | 4 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Occupation | none |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1920
Worcester, Massachusetts
Spouse, age 49
Worcester, Massachusetts · implied b. ~1871 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nichols |
| Given Name | Mary W |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1930
Worcester, Massachusetts
Head, age 59
Worcester, Massachusetts · implied b. ~1871 — 5 household members
| Surname | Nichols |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Maine |
| Age at First Marriage | 23 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Occupation | Nurse |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 7000 |
| Home Value / Rent | R |
| Veteran | O |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 Nichols across 3 US Census years (1910, 1920 and 1930) in Worcester, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Nichols
Head · 1930 · age 59 · b. ~1871 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Worcester, Massachusetts
Open full size
1930 US Federal Census — Worcester, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel967:0613)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Olson | 50 | Head | Foreman | Sweden |
| 2 | Rose Olson | 44 | Wife | — | Connecticut |
| 3 | Ernest W Berggren | 53 | Head | Chemist | Sweden |
| 4 | Ottilia Berggren | 57 | Wife | — | Sweden |
| 5 | Stina Berggren | 21 | Daughter | — | Massachusetts |
| 6 | Constance Reis | 48 | Head | Meatcutter | Poland |
| 7 | Anna Reis | 47 | Wife | — | Poland |
| 8 | Edmund Reis | 22 | Son | Machinist | Massachusetts |
| 9 | Leon W Reis | 21 | Son | Shipper | Massachusetts |
| 10 | Lucy C Reis | 15 | Daughter | Salesgirl | Massachusetts |
| 11 | — | None | — | — | — |
| 12 | — | None | — | — | — |
| 13 | — | None | — | — | — |
| 14 | Mary A Nichols THIS PERSON | 59 | Head | Nurse | Maine |
| 15 | Eugene E Nichols | 25 | Son | Reporter | Massachusetts |
| 16 | Martha Nichols | 19 | Daughter | Teacher | Massachusetts |
| 17 | Fred Horne | 32 | Son-in-law | Gardener | Massachusetts |
| 18 | Edna D Horne | 22 | Daughter | — | Massachusetts |
| 19 | — | None | — | — | — |
| 20 | — | None | — | — | — |
| 21 | — | None | — | — | — |
| 22 | — | None | — | — | — |
| 23 | — | None | — | — | — |
| 24 | Lellice Douty | 46 | Head | — | Vermont |
| 25 | Lloyd A Douty | 13 | Son | Paper Boy | Massachusetts |
| 26 | Leslie A Douty | 12 | Son | — | Massachusetts |
| 27 | Evelyn Angell | 75 | Mother | — | Massachusetts |
| 28 | Lester Chenoweth | 23 | Boarder | Mech. Engr. | Missouri |
| 29 | Charles A Rich | 44 | Head | Chief Draftsman | Massachusetts |
| 30 | Ida M Rich | 42 | Wife | — | Massachusetts |
| 31 | Gladys I Rich | 19 | Daughter | — | Massachusetts |
| 32 | C. Allen Rich | 15 | Son | — | Massachusetts |
| 33 | John J Leary | 27 | Head | Compositor | Massachusetts |
| 34 | Marion E Leary | 25 | Wife | Weaver | New Hampshire |
| 35 | John J Leary | 7 | Son | — | Massachusetts |
| 36 | Ellen E Leary | 60 | Mother | — | Irish Free State |
| 37 | — | None | — | — | — |
| 38 | — | None | — | — | — |
| 39 | — | None | — | — | — |
| 40 | — | None | — | — | — |
| 41 | — | None | — | — | — |
| 42 | — | None | — | — | — |
| 43 | — | None | — | — | — |
| 44 | — | None | — | — | — |
| 45 | — | None | — | — | — |
| 46 | — | None | — | — | — |
| 47 | — | None | — | — | — |
| 48 | — | None | — | — | — |
| 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)