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Margaret Mccormick — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rockland-County, New York
Our Model Tree links this Margaret Mccormick across the 1920, 1930 and 1940 US Censuses in Rockland-County, New York (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rockland-County, New York |
| Surname | McCormick |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | West Haverstraw |
| 1935 Residence (County) | Rockland |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Doc |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 170 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Stenographer |
| Township / Ward | West Haverstraw |
| Est. Birth Year | ~1917 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Mary Mccormick | Daughter | — | 27 | ~1913 |
| Margaret Mccormick | Daughter | — | 23 | ~1917 |
| John Mccormick | Head | — | 63 | ~1877 |
| Mary Mccormick | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Rockland, New …
Daughter, age 3
Rockland, New York · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormack |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Rockland, New …
Daughter, age 13
Rockland, New York · implied b. ~1917 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormick |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Rockland-County, New …
Daughter, age 23
Rockland-County, New York · implied b. ~1917 — 4 household members
| Surname | McCormick |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | West Haverstraw |
| 1935 Residence (County) | Rockland |
| Occupation | Stenographer |
| Industry | Doc |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 170 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Margaret Mccormick across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Mccormack (~0.92 confidence) and father John Mccormick (~0.92 confidence) and mother Mary Mccormack (~0.92 confidence) and mother Mary Mccormick (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Mccormack
b. ~1877
Source father
● Household
· direct · ~0.92
Father
John Mccormick
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Mary Mccormack
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Mary Mccormick
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Mccormick
Daughter · 1940 · age 23 · b. ~1917 · New York
★ You are viewing this record
Sibling
Mary Mccormick
Sibling · 1940 · age 27
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
1940 US Federal Census — Rockland-County, New York
Open full size
1940 US Federal Census — Rockland-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02766-00574)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Tillie Phillips | 43 | Wife | — | New York |
| 42 | Shirley Phillips | 13 | Daughter | — | New York |
| 43 | George Phillips | 26 | Head | Attendant | New York |
| 44 | Theo Phillips | 25 | Wife | — | New York |
| 45 | Vera Phillips | 12 | Daughter | — | New York |
| 46 | Anna Minauck | 58 | Head | — | Czechoslovakia |
| 47 | William Minauck | 15 | Son | — | New York |
| 48 | James Minauck | 16 | Son | — | New York |
| 49 | John Jacobs | 35 | Head | — | Czechoslovakia |
| 50 | Mary Jacobs | 33 | Daughter | Winder | New York |
| 51 | Edward Jacobs | 23 | Son | Order Clerk | New York |
| 52 | Helen Jacobs | 21 | Daughter | Packer | New York |
| 53 | Patrick Simone | 64 | Head | Shoemaker | Italy |
| 54 | Santina Simone | 52 | Wife | — | Italy |
| 55 | Angelina La Greca | 54 | Sister | Knitter | Italy |
| 56 | Felice Gaso | 74 | Head | — | Italy |
| 57 | Felice Scroce | 55 | Head | Barber | Italy |
| 58 | Carmela Scroce | 52 | Wife | — | Italy |
| 59 | Louisa Scroce | 26 | Daughter | — | New York |
| 60 | Harry Scroce | 17 | Son | — | New York |
| 61 | Viola Scroce | 20 | Daughter | — | New York |
| 62 | Joseph Heffren | 41 | Head | Storekeeper | New York |
| 63 | Angeline Heffren | 32 | Wife | — | New York |
| 64 | Shirley Heffren | 12 | Daughter | — | New York |
| 65 | Anthony Fitzgerald | 31 | Head | Store Keeper | New York |
| 66 | Lula Fitzgerald | 29 | Wife | — | New York |
| 67 | Betty Fitzgerald | 5 | Daughter | — | New York |
| 68 | William Knapp | 47 | Head | Bartender | New York |
| 69 | Madeline Knapp | 47 | Wife | — | New York |
| 70 | Joan Ann Knapp | 6 | Daughter | — | New York |
| 71 | John Mccormick | 63 | Head | Steamfitter | New York |
| 72 | Mary Mccormick | 60 | Wife | — | New York |
| 73 | Mary Jr Mccormick | 27 | Daughter | Stenographer | New York |
| 74 | Margaret Mccormick THIS PERSON | 23 | Daughter | Stenographer | New York |
| 75 | Camillo Moniquet | 47 | Head | Mechanic | Italy |
| 76 | Angelina Moniquet | 45 | Wife | Finisher | Italy |
| 77 | Anthony Moniquet | 15 | Son | — | Italy |
| 78 | John Hornbecker | 57 | Head | Farmer | Penn |
| 79 | Margaret Hornbecker | 55 | Wife | — | New York |
| 80 | Maurice Schwartz | 28 | Head | Fruit Dealer | Russia |
Pedigree Summary
Margaret + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)