MC
Mary Corcoran — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Essex, New Jersey
Our Model Tree links this Mary Corcoran across the 1930 and 1940 US Censuses in Essex, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 7-person household.
Age 0
b. ~1930
Female
Daughter
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, New Jersey |
| Surname | Corcoran |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Washington |
| Mother's Birthplace | Washington |
| Additional Details | |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Summit City |
| Est. Birth Year | ~1930 |
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 |
|---|---|---|---|---|
| James Corcoran | Head | — | 42 | ~1888 |
| Edith Corcoran | Spouse | — | 43 | ~1887 |
| James Corcoran | Son | — | 5 | ~1925 |
| Mary Corcoran | Daughter | — | 5 | ~1925 |
| Blanche Corcoran | Other | — | 19 | ~1911 |
| Eleanor Corcoran | Daughter | — | 9 | ~1921 |
| Mary Corcoran | Daughter | — | ~1930 |
Census Appearances
1930
Essex, New …
Daughter, age
Essex, New Jersey · implied b. ~1930 — 7 household members
| Surname | Corcoran |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Washington |
| Mother's Birthplace | Washington |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Other, age 11
Essex-County, New Jersey · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Corcoran |
| Given Name | Margaret M. |
| Relationship to Head | Step Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Irvington |
| 1935 Residence (County) | Essex |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Corcoran across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Corcoran
Daughter · 1930 · age 0 · b. ~1930 · New Jersey
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Sibling
James Corcoran
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Corcoran
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Corcoran
Sibling · 1930 · age 5
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 — Essex, New Jersey
Open full size
1930 US Federal Census — Essex, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1389:0975)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Ella Sied | 8 | Daughter | — | New York |
| 52 | Barbara Sied | 5 | Daughter | — | New York |
| 53 | Mary Renolski | 25 | Maid | Maid | New Jersey |
| 54 | Marion Williams | 19 | Boarder | Maid | Illinois |
| 55 | Thomas G. Lee | 30 | Head | Salesman | New Jersey |
| 56 | Florence G. Lee | 31 | Wife | — | New Jersey |
| 57 | Thomas G. Lee | 4 | Son | — | New Jersey |
| 58 | Shirley L. Lee | 3 | Daughter | — | New Jersey |
| 59 | Blanche Robinson | 19 | Maid | Maid | North Carolina |
| 60 | Philip Pickwick | 27 | Head | Manager | Massachusetts |
| 61 | Eunice Pickwick | 43 | Wife | — | Canada English |
| 62 | Margaret Pickwick | 40 | Maid | Maid | Northern Ireland |
| 63 | George E. Eastman | 49 | Head | Broker | New York |
| 64 | Eleanor Eastman | 44 | Wife | — | New York |
| 65 | James M. Fowler | 58 | Cousin | Salesman | New York |
| 66 | James W. Corcoran | 42 | Head | Broker | Washington |
| 67 | Edith Corcoran | 43 | Wife | — | Washington |
| 68 | Eleanor Corcoran | 9 | Daughter | — | Washington |
| 69 | James Corcoran | 5 | Son | — | New Jersey |
| 70 | Mary Corcoran THIS PERSON | 0 | Daughter | — | New Jersey |
| 71 | Blanche Corcoran | 19 | Maid | — | New Jersey |
| 72 | Mary Corcoran | 5 | Daughter | — | New Jersey |
| 73 | Francis M. Leonard | 41 | Head | Sales Manager | Minnesota |
| 74 | Constance Leonard | 35 | Wife | — | Iowa |
| 75 | Mary Leonard | 10 | Daughter | — | Ohio |
| 76 | Frances Leonard | 7 | Daughter | — | New Jersey |
| 77 | Constance Leonard | 2 | Daughter | — | New Jersey |
| 78 | Gladys Everett | 26 | Maid | Maid | North Carolina |
| 79 | Norman L. Swartout | 50 | Head | Publisher | New York |
| 80 | Helen Swartout | 43 | Wife | — | Massachusetts |
| 81 | Robert Swartout | 11 | Son | — | New Jersey |
| 82 | Barbara Swartout | 10 | Daughter | — | New Jersey |
| 83 | Esther Erickson | 42 | Maid | Servant | Finland |
| 84 | Harry Elliot | 45 | Head | Caretaker | England |
| 85 | Edith Elliot | 42 | Wife | — | England |
| 86 | William Elliot | 19 | Son | Carpenter | New Jersey |
| 87 | Florence Elliot | 18 | Daughter | — | New York |
| 88 | John D. Stumman | 61 | Lodger | — | New York |
| 89 | Charlotte Elliot | 1 | Granddaughter | — | New Jersey |
| 90 | Lawrence L. Charles | 37 | Head | Repairman | New Jersey |
| 91 | Lillian E. Charles | 57 | Wife | — | New Jersey |
| 92 | Ernest Ludwig | 59 | Head | Porter | New York |
| 93 | Catherine Ludwig | 49 | Wife | — | New Jersey |
| 94 | Herbert Mcclellan | 3 | Nephew | — | New Jersey |
| 95 | Jerry A. Mutter | 38 | Head | Maintenance | New Jersey |
| 96 | Louise Mutter | 34 | Wife | — | New Jersey |
| 97 | Joseph Mutter | 7 | Son | — | New Jersey |
| 98 | Rose Benjamin | 56 | Servant | Servant | South Carolina |
| 99 | Josiah H. Johnson | 80 | Head | — | New Jersey |
| 100 | Josephine P. Johnson | 77 | Wife | — | New Jersey |
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)