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Mary Mcdonnell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Essex, Massachusetts
Our Model Tree links this Mary Mcdonnell across the 1930 and 1940 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 7-person household.
Age 39
b. ~1891
Female
Spouse
Born: Irish Free State
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, Massachusetts |
| Surname | McDonnell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Alien |
| Year of Immigration | 1909 |
| Age at First Marriage | 24 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
| Township / Ward | Peabody City |
| Est. Birth Year | ~1891 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Mcdonnell | Daughter | — | 10 | ~1920 |
| Neil Mcdonnell | Son | — | 12 | ~1918 |
| Neil Mcdonnell | Head | — | 47 | ~1883 |
| Martin Mcdonnell | Son | — | 13 | ~1917 |
| Mary Mcdonnell | Spouse | — | 39 | ~1891 |
| Joseph Mcdonnell | Son | — | 5 | ~1925 |
| Phillip Mcdonnell | Son | — | 8 | ~1922 |
Census Appearances
1930
Essex, Massachusetts
Spouse, age 39
Essex, Massachusetts · implied b. ~1891 — 7 household members
| Surname | McDonnell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Alien |
| Year of Immigration | 1909 |
| Age at First Marriage | 24 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Suffolk-County, Massachusetts
Spouse, age 49
Suffolk-County, Massachusetts · implied b. ~1891 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonnell |
| Given Name | Maria |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birthplace (normalized) | irish free state |
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 Mcdonnell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mcdonnell
Spouse · 1930 · age 39 · b. ~1891 · 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:massachusettscensus00reel902:0418)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Costa Theodorakopoulos | 17 | Son | — | Massachusetts |
| 52 | John Theodorakopoulos | 12 | Son | — | Massachusetts |
| 53 | Katherine Theodorakopoulos | 10 | Daughter | — | Massachusetts |
| 54 | Alexander Salem | 30 | Head | Beamster | Syria |
| 55 | Mary Salem | 25 | Sister | Seasoner | Syria |
| 56 | Herbert Horne | 58 | Head | Seasoner | Pennsylvania |
| 57 | Margaret Horne | 49 | Wife | — | England |
| 58 | Grace Horne | 19 | Daughter | — | Maine |
| 59 | Mary Horne | 17 | Daughter | Tipping | Maine |
| 60 | Cora Horne | 14 | Daughter | — | Maine |
| 61 | William E. Tow | 55 | Head | Fireman | Georgia |
| 62 | Mary F. Tow | 50 | Wife | — | Tennessee |
| 63 | William G. Tow | 27 | Son | Embosser | Georgia |
| 64 | Lawrence C. Tow | 20 | Son | Feeder | Massachusetts |
| 65 | Mary F. Tow | 17 | Daughter | — | Massachusetts |
| 66 | Joseph Phillips | 45 | Head | Staker | Portugal |
| 67 | Gloria Phillips | 36 | Wife | Sorter | Portugal |
| 68 | Ambrose Salvio Phillips | 16 | Son | — | Portugal |
| 69 | James Phillips | 6 | Son | — | Massachusetts |
| 70 | Antonio F. Amaro | 35 | Head | Laborer | Portugal |
| 71 | Virginia Amaro | 34 | Wife | — | Portugal |
| 72 | William Amaro | 9 | Son | — | Massachusetts |
| 73 | Francis J. Amaro | 8 | Son | — | Massachusetts |
| 74 | John R. Amaro | 5 | Son | — | Massachusetts |
| 75 | Emmanuel Skourakis | 43 | Roomer | Staker | Greece |
| 76 | William Mello | 29 | Head | Tacker | Portugal |
| 77 | Rose Mello | 29 | Wife | Laborer | Massachusetts |
| 78 | Eugene Perrakis | 42 | Head | Staker | Greece |
| 79 | Vasiliki Perrakis | 35 | Wife | — | Greece |
| 80 | Eugenia Perrakis | 13 | Daughter | — | Massachusetts |
| 81 | Victoria Perrakis | 9 | Daughter | — | Massachusetts |
| 82 | John Perrakis | 5 | Son | — | Massachusetts |
| 83 | Dorothea Perrakis | 3 | Daughter | — | Massachusetts |
| 84 | Agnes Perrakis | 1 | Son | — | Massachusetts |
| 85 | John Karatzas | 37 | Head | Tacker | Greece |
| 86 | Athanasios Karatzas | 34 | Roomer | Glazer | Greece |
| 87 | Adam Halonen | 54 | Head | Carpenter | Finland |
| 88 | Aurora Halonen | 53 | Wife | — | Finland |
| 89 | William Halonen | 22 | Son | Musician | Massachusetts |
| 90 | Reino Halonen | 15 | Son | — | Massachusetts |
| 91 | Neil Mcdonnell | 47 | Head | Staker | Irish Free State |
| 92 | Mary Mcdonnell THIS PERSON | 39 | Wife | — | Irish Free State |
| 93 | Martin Mcdonnell | 13 | Son | — | Massachusetts |
| 94 | Neil Jr. Mcdonnell | 12 | Son | — | Massachusetts |
| 95 | Margaret Mcdonnell | 10 | Daughter | — | Massachusetts |
| 96 | Phillip Mcdonnell | 8 | Son | — | Massachusetts |
| 97 | Joseph Mcdonnell | 5 | Son | — | Massachusetts |
| 98 | Just Varnavskas | 42 | Head | Presser | Russia |
| 99 | Martha Varnavskas | 37 | Wife | — | Russia |
| 100 | Alexander Varnavskas | 16 | Son (step) | — | Russia |
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)