MC
Mary Cronin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Essex, Massachusetts
Our Model Tree links this Mary Cronin across the 1920, 1930 and 1940 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 5-person household.
Age 67
b. ~1863
Female
Head
Born: New Hampshire
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, Massachusetts |
| Surname | Cronin |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Township / Ward | City Of Haverhill |
| Est. Birth Year | ~1863 |
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 |
|---|---|---|---|---|
| Mary Cronin | Head | — | 67 | ~1863 |
| Mary Cronin | Daughter | — | 24 | ~1906 |
| John Bohanan | Other | — | 44 | ~1886 |
| Jeremiah Cronin | Son | — | 29 | ~1901 |
| Helen Bohanan | Daughter | — | 34 | ~1896 |
Census Appearances
1920
Essex, Massachusetts
Head, age 52
Essex, Massachusetts · implied b. ~1868 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cronin |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Housework |
| Industry | General practice |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Essex, Massachusetts
Head, age 67
Essex, Massachusetts · implied b. ~1863 — 5 household members
| Surname | Cronin |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Essex-County, Massachusetts
Other, age 72
Essex-County, Massachusetts · implied b. ~1868 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cronin |
| Given Name | Mary |
| Relationship to Head | Mother-in-law |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Haverhill City |
| 1935 Residence (County) | Essex |
| Occupation | housework |
| Industry | private home |
| Class of Worker | OA |
| Hours Worked | 12 |
| Income (1939) | 520 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Cronin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Cronin
Head · 1930 · age 67 · b. ~1863 · 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 — Essex, Massachusetts
Open full size
1930 US Federal Census — Essex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel897:0226)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Katharine Cotter | 31 | Daughter | Shoeworker | Massachusetts |
| 52 | Frank Cotter | 30 | Son | — | Massachusetts |
| 53 | Mary Cotter | 28 | Daughter | Housekeeper | Massachusetts |
| 54 | John Cotter | 26 | Son | Shoe Worker | Massachusetts |
| 55 | Daniel Cotter | 22 | Son | Laborer | Massachusetts |
| 56 | George Cotter | 19 | Son | — | Massachusetts |
| 57 | Margaret Cotter | 12 | Daughter | — | Massachusetts |
| 58 | Mary Cronin THIS PERSON | 67 | Head | — | New Hampshire |
| 59 | Mary Cronin | 24 | Daughter | Shoe Worker | Massachusetts |
| 60 | Jeremiah Cronin | 29 | Son | Wood-Heeler | Massachusetts |
| 61 | John Bohanan | 44 | Son-in-law | Wood-Heeler | Massachusetts |
| 62 | Helen Bohanan | 34 | Daughter | Shoe-Worker | Massachusetts |
| 63 | John Burns | 54 | Head | Shoe-Trimmer | New Hampshire |
| 64 | Ellen Burns | 54 | Wife | — | Massachusetts |
| 65 | Theresa Burke | 42 | Sister-in-law | Book-Keeper | Massachusetts |
| 66 | Anna Dacey | 66 | Head | — | Irish Free State |
| 67 | Patrick Dacey | 25 | Son | Laborer | Massachusetts |
| 68 | Madeline Tierney | 33 | Daughter | Stitcher | Massachusetts |
| 69 | Arlene Tierney | 4 | Granddaughter | — | Massachusetts |
| 70 | Margaret Tierney | 1 | Granddaughter | — | Massachusetts |
| 71 | John Dacey | 60 | Head | Laborer | Irish Free State |
| 72 | Mary Dacey | 61 | Wife | — | Irish Free State |
| 73 | Frank Dacey | 28 | Son | Wood-Heeler | Massachusetts |
| 74 | Joseph Dacey | 23 | Son | — | Massachusetts |
| 75 | Margaret Dacey | 21 | Daughter | — | Massachusetts |
| 76 | William Condon | 33 | Son-in-law | Asst Foreman | Massachusetts |
| 77 | Mary Condon | 33 | Daughter | Book-Keeper | Mass |
| 78 | Ignatius Guerelis | 55 | Head | Leather Worker | Greece |
| 79 | Mary Guerelis | 49 | Wife | — | Greece |
| 80 | Harry Guerelis | 21 | Son | Electrician | Greece |
| 81 | Kyriakos Thucaley | 43 | Head | Presser | Greece |
| 82 | Catherine Thucaley | 12 | Daughter | — | Massachusetts |
| 83 | James Thucaley | 8 | Son | — | Massachusetts |
| 84 | Artemis Thucaley | 6 | Daughter | — | Massachusetts |
| 85 | Ourania Thucaley | 5 | Daughter | — | Massachusetts |
| 86 | Wilfred Woodhead | 44 | Head | Pin Boy | Massachusetts |
| 87 | Ida Woodhead | 42 | Wife | — | Massachusetts |
| 88 | Irene Thibodeau | 22 | Step-daughter | Housekeeper | Massachusetts |
| 89 | Louis Thibodeau | 20 | Step-son | Kitchen Man | Massachusetts |
| 90 | Joseph Thibodeau | 18 | Step-son | Pin Boy | Massachusetts |
| 91 | Edward Thibodeau | 16 | Step-son | — | Massachusetts |
| 92 | Alvina Thibodeau | 14 | Step-daughter | — | Massachusetts |
| 93 | William Thibodeau | 13 | Step-son | — | Massachusetts |
| 94 | Alphonse Thibodeau | 11 | Step-son | — | Massachusetts |
| 95 | Harold Thibodeau | 9 | Step-son | — | Massachusetts |
| 96 | Alice Thibodeau | 4 | Step-son | — | Massachusetts |
| 97 | Mary Thibodeau | 2 | Step-daughter | — | Massachusetts |
| 98 | William Eastman | 53 | Head | Mill Worker | Massachusetts |
| 99 | Carrie Eastman | 42 | Wife | Laundry Worker | New Hampshire |
| 100 | Leon Flagg | 36 | Head | Shirt Finisher | 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)