MN
Mary Nichols — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Nichols across the 1920, 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 5-person household.
Age 44
b. ~1886
Female
Spouse
Born: Greece
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Nichols |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Greece |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 24 |
| Father's Birthplace | Greece |
| Mother's Birthplace | Greece |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | Greek |
| Birth Country | Greece |
| Birthplace (normalized) | greece |
| Township / Ward | City Of Malden |
| Est. Birth Year | ~1886 |
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 |
|---|---|---|---|---|
| Aphrodite Nichols | Daughter | — | 15 | ~1915 |
| Bessie Nichols | Daughter | — | 17 | ~1913 |
| Anthony Nichols | Head | — | 60 | ~1870 |
| John Nichols | Son | — | 18 | ~1912 |
| Mary Nichols | Spouse | — | 44 | ~1886 |
Census Appearances
1920
Essex, Massachusetts
Spouse, age 34
Essex, Massachusetts · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholas |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Greece |
| Father's Birthplace | Greece |
| Mother's Birthplace | Greece |
| Occupation | Tailor |
| Industry | Tailor Shop |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Greek |
| Birth Country | Greece |
| Birthplace (normalized) | greece |
1930
Middlesex, Massachusetts
Spouse, age 44
Middlesex, Massachusetts · implied b. ~1886 — 5 household members
| Surname | Nichols |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Greece |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 24 |
| Father's Birthplace | Greece |
| Mother's Birthplace | Greece |
| Can Read/Write | Yes |
| Mother Tongue | Greek |
| Birth Country | Greece |
| Birthplace (normalized) | greece |
1940
Middlesex-County, Massachusetts
Spouse, age 56
Middlesex-County, Massachusetts · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholas |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Greece |
| 1935 Residence (City) | Malden City |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| Birth Country | Greece |
| Birthplace (normalized) | greece |
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 (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Nichols
Spouse · 1930 · age 44 · b. ~1886 · 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 — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel922:0750)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Hazel A. Barclay | 31 | Wife | Hairdresser | Canada English |
| 52 | Isaac Snowe | 54 | Head | — | New York |
| 53 | Aivan Snowe | 13 | Son | — | Massachusetts |
| 54 | Frederick S. Wood | 34 | Head | Clerk | Massachusetts |
| 55 | Beulah G. Wood | 35 | Wife | — | Canada English |
| 56 | Theodore J. Doucette | 26 | Head | Salesman | Canada French |
| 57 | Louisa G. Doucette | 24 | Wife | — | Massachusetts |
| 58 | Leslie B. Vaughan | 23 | Head | Clerk | Connecticut |
| 59 | Clara Vaughan | 68 | Mother | — | England |
| 60 | Nellie Stevens | 19 | Roomer | Clerk | Canada English |
| 61 | John Keogh | 35 | Head | Porter | Irish Free State |
| 62 | Julia M. Keogh | 32 | Wife | — | Irish Free State |
| 63 | John C. Keogh | 1 | Son | — | Massachusetts |
| 64 | Thomas J. Donnelly | 24 | Lodger | Laborer | Irish Free State |
| 65 | Harry F. Lowes | 63 | Head | Grinder | England |
| 66 | Flora A. Lowes | 58 | Wife | — | Massachusetts |
| 67 | Winifred Ingalls | 13 | Granddaughter | — | Massachusetts |
| 68 | Alice M. Ingalls | 11 | Granddaughter | — | Massachusetts |
| 69 | John T. Burns | 51 | Head | Assistant | Irish Free State |
| 70 | Mary F. Burns | 46 | Wife | — | Irish Free State |
| 71 | Joseph E. Burns | 15 | Son | — | Massachusetts |
| 72 | John T. Jr. Burns | 14 | Son | — | Massachusetts |
| 73 | William Burns | 7 | Son | — | Massachusetts |
| 74 | Louise M. Burns | 6 | Daughter | — | Massachusetts |
| 75 | James J. Fogarty | 44 | Brother-in-law | Proprietor | Irish Free State |
| 76 | John J. Fogarty | 42 | Brother-in-law | Proprietor | Irish Free State |
| 77 | David V. Fogarty | 33 | Brother-in-law | Proprietor | Irish Free State |
| 78 | William F. Fogarty | 31 | Brother-in-law | Salesman | Irish Free State |
| 79 | William Kernoghan | 58 | Head | Laborer | Irish Free State |
| 80 | Olive Kernoghan | 57 | Wife | — | Canada English |
| 81 | Doris Kernoghan | 29 | Daughter | Clerk | Massachusetts |
| 82 | Edward A. Doherty | 66 | Head | — | Massachusetts |
| 83 | Mary E. Doherty | 60 | Sister | — | Massachusetts |
| 84 | James L. Doherty | 64 | Brother | Painter | Massachusetts |
| 85 | Joseph C. Doherty | 59 | Brother | Lather | Massachusetts |
| 86 | Thomas H. Doherty | 57 | Brother | Assistant Postmaster | Massachusetts |
| 87 | James E. Macdonald | 52 | Head | Superintendent | Canada English |
| 88 | Mary E. Macdonald | 43 | Wife | — | Massachusetts |
| 89 | Catherine M. Macdonald | 22 | Daughter | — | Massachusetts |
| 90 | Anna E. Macdonald | 20 | Daughter | — | Massachusetts |
| 91 | Anthony Nichols | 60 | Head | Proprietor | Greece |
| 92 | Mary Nichols THIS PERSON | 44 | Wife | — | Greece |
| 93 | John Nichols | 18 | Son | — | Massachusetts |
| 94 | Bessie Nichols | 17 | Daughter | — | Massachusetts |
| 95 | Aphrodite Nichols | 15 | Daughter | — | Massachusetts |
| 96 | Dennis C. Holland | 40 | Head | Policeman | Massachusetts |
| 97 | Rose G. Holland | 41 | Wife | — | Massachusetts |
| 98 | George E. Holland | 17 | Son | — | Massachusetts |
| 99 | John W. Holland | 16 | Son | — | Massachusetts |
| 100 | Rosemary F. Holland | 15 | Daughter | — | Massachusetts |
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)