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Mary Mccoy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Essex, New Jersey
Our Model Tree links this Mary Mccoy across the 1920, 1930 and 1940 US Censuses in Essex, New Jersey (XGBoost, ~Confirmed), with identified parents Leontine & Alfred — first a daughter (b.~1916), then head of a 6-person household.
Age 14
b. ~1916
Female
Daughter
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, New Jersey |
| Surname | McCoy |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Newark City |
| Est. Birth Year | ~1916 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Frances Mccoy | Daughter | — | 15 | ~1915 |
| Mary Mccoy | Daughter | — | 14 | ~1916 |
| Helen Mccoy | Daughter | — | 14 | ~1916 |
| Francis Mccoy | Head | — | 41 | ~1889 |
| William Mccoy | Son | — | 12 | ~1918 |
| Alvina Mccoy | Spouse | — | 37 | ~1893 |
Census Appearances
1920
Essex, New …
Daughter, age 4
Essex, New Jersey · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Can Read | No |
| Can Write | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Daughter, age 14
Essex, New Jersey · implied b. ~1916 — 6 household members
| Surname | McCoy |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Daughter, age 25
Essex-County, New Jersey · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Macy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark City |
| 1935 Residence (County) | Essex |
| Occupation | Clerk |
| Industry | Insurance |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 680 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Mccoy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Leontine Macy (~0.92 confidence) and father Alfred Macy (~0.92 confidence) and father Francis Mccoy (~0.92 confidence) and mother Alvina Mccoy (~0.92 confidence) and mother Alonia Mccoy (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Leontine Macy
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Alfred Macy
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Francis Mccoy
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Alvina Mccoy
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Alonia Mccoy
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Mccoy
Daughter · 1930 · age 14 · b. ~1916 · New Jersey
★ You are viewing this record
Sibling
William Mccoy
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mccoy
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Mccoy
Sibling · 1930 · age 15
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:newjerseycensus00reel1339:0344)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Francis E Mccoy | 41 | Head | Fireman | Pennsylvania |
| 52 | Alvina S Mccoy | 37 | Wife | — | New Jersey |
| 53 | Frances B Mccoy | 15 | Daughter | — | New Jersey |
| 54 | Mary E Mccoy THIS PERSON | 14 | Daughter | — | New Jersey |
| 55 | Helen R Mccoy | 14 | Daughter | — | New Jersey |
| 56 | William A Mccoy | 12 | Son | — | New Jersey |
| 57 | Anton Cacka | 41 | Head | Laborer | Czechoslovakia |
| 58 | Julia Cacka | 38 | Wife | Laundress | Czechoslovakia |
| 59 | Virginia B Cacka | 18 | Daughter | — | New Jersey |
| 60 | Johanna M Cacka | 16 | Daughter | — | New Jersey |
| 61 | Josephine E Cacka | 13 | Daughter | — | New Jersey |
| 62 | Robert Cacka | 11 | Son | — | New Jersey |
| 63 | Charles Scheible | 67 | Head | Watchman | Germany |
| 64 | Anna Scheible | 62 | Wife | — | Germany |
| 65 | Anton Scheible | 33 | Son | Life Guard | New Jersey |
| 66 | Josephine Scheible | 28 | Daughter-in-law | Ironer | New Jersey |
| 67 | Robert Scheible | 1 | Son | — | New Jersey |
| 68 | Charles Durezynski | 36 | Head | Laborer | Poland |
| 69 | Sophie Durezynski | 34 | Wife | Sewing | Poland |
| 70 | Stanley Durezynski | 7 | Son | — | Indiana |
| 71 | Edward Durezynski | 5 | Son | — | New Jersey |
| 72 | William H Lutz | 34 | Head | Work | New Jersey |
| 73 | Margaret A Lutz | 29 | Wife | — | New Jersey |
| 74 | William Jr Lutz | 1 | Son | — | New Jersey |
| 75 | Fred Lutz | 77 | Head | (Retired) | Germany |
| 76 | Barbara Lutz | 69 | Wife | — | Germany |
| 77 | Wendell Kulburg | 58 | Head | Laborer | Austria |
| 78 | Caroline Kulburg | 45 | Wife | — | Hungary |
| 79 | Pauline Kulburg | 20 | Daughter | Stenographer | New Jersey |
| 80 | Wendell Jr Kulburg | 18 | Son | Stockroom | New Jersey |
| 81 | Philip Corrigan | 39 | Head | Fireman | New Jersey |
| 82 | Madeline Corrigan | 31 | Wife | — | New Jersey |
| 83 | Frank M Corrigan | 13 | Son | — | New Jersey |
| 84 | Philip Jr Corrigan | 4 | Son | — | New Jersey |
| 85 | George Corrigan | 2 | Son | — | New Jersey |
| 86 | Elizabeth Thorn | 65 | Mother-in-law | — | Germany |
| 87 | Louis M Thorn | 36 | Head | Carpenter | New Jersey |
| 88 | Elizabeth Thorn | 33 | Wife | — | New Jersey |
| 89 | Barbara Kartal | 68 | Head | — | Germany |
| 90 | William Kartal | 37 | Son | Salesman | New Jersey |
| 91 | August Kartal | 35 | Son | Chauffeur | New Jersey |
| 92 | Florence Kartal | 30 | Son | Salesman | New Jersey |
| 93 | Harold E Brown | 36 | Head | Expressman | New Jersey |
| 94 | Thompson, Ben H Brown | 73 | Uncle | Gardener | New Jersey |
| 95 | George J Isac | 53 | Head | Weaver | Germany |
| 96 | Martha Isac | 49 | Wife | — | Germany |
| 97 | Marie J Isac | 25 | Daughter | Spooler | New Jersey |
| 98 | Catherine Isac | 22 | Daughter | Spooler | New Jersey |
| 99 | Elsie G Isac | 21 | Daughter | Operator | New Jersey |
| 100 | Fred J Isac | 14 | Son | — | New Jersey |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)