MM
Margaret Mcgrath — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Margaret Mcgrath across the 1910, 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1879), then head of a 3-person household.
Age 61
b. ~1879
Female
Head
Born: New Jersey
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| 1935 Residence (City) | Orange |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Industry | 0 |
| Class of Worker | No |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Orange |
| Est. Birth Year | ~1879 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Genevieve Mcgrath | Daughter | — | 30 | ~1910 |
| Catherine Mcgrath | Daughter | — | 32 | ~1908 |
| Margaret Mcgrath | Head | — | 61 | ~1879 |
Census Appearances
1910
Essex, New …
Spouse, age 32
Essex, New Jersey · implied b. ~1878 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Years Married | 15 |
| Children Born | 6 |
| Children Living | 6 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Housewife |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1920
Essex, New …
Head, age 41
Essex, New Jersey · implied b. ~1879 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Head, age 51
Essex, New Jersey · implied b. ~1879 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 45 |
| Radio Set | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Head, age 61
Essex-County, New Jersey · implied b. ~1879 — 3 household members
| Surname | McGrath |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| 1935 Residence (City) | Orange |
| 1935 Residence (County) | Essex |
| Industry | 0 |
| Class of Worker | No |
| Highest Grade | No 8 |
| 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 Margaret Mcgrath across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Mcgrath
Head · 1940 · age 61 · b. ~1879 · New Jersey
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02339-00699)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anna Monahan | 39 | Wife | — | New York |
| 42 | Jane Monahan | 13 | Daughter | — | New Jersey |
| 43 | William Monahan | 11 | Son | — | New Jersey |
| 44 | Margaret Mcgrath THIS PERSON | 61 | Head | — | New Jersey |
| 45 | Catherine Mcgrath | 32 | Daughter | Bottling | New Jersey |
| 46 | Genevieve Mcgrath | 30 | Daughter | Telephone Opr. | New Jersey |
| 47 | Leonard Mooney | 27 | Head | Clerk | New Jersey |
| 48 | Lillian Mooney | 28 | Wife | — | New Jersey |
| 49 | Richard Mooney | 5 | Son | — | New Jersey |
| 50 | Joseph W. Stanley | 53 | Head | Mechanic | England |
| 51 | Mary Stanley | 51 | Wife | — | England |
| 52 | William Stanley | 25 | Son | Mechanic | New Jersey |
| 53 | Philomeno Moreser | 31 | Head | — | Pennsylvania |
| 54 | Elizabeth Moreser | 11 | Daughter | — | New Jersey |
| 55 | Joseph Moreser | 8 | Son | — | New Jersey |
| 56 | Eugene Moreser | 5 | Son | — | New Jersey |
| 57 | Phyllis Moreser | 4 | Daughter | — | New Jersey |
| 58 | George Kidson | 62 | Head | Switchman | Prince Edward Is. |
| 59 | Mary Kidson | 61 | Wife | — | Halifax Canada |
| 60 | Virginia Kidson | 23 | Daughter | Stenographer | Halifax Canada |
| 61 | Amelia Schill | 60 | Head | — | New Jersey |
| 62 | Fred Schill | 58 | Brother | Receiving Clerk | New Jersey |
| 63 | Frank Schill | 56 | Brother | Laborer | New Jersey |
| 64 | Mary Schill | 54 | Sister | Seamstress | New Jersey |
| 65 | Cecelia Schill | 40 | Sister | Assembling | New Jersey |
| 66 | Raymond Bradley | 26 | Nephew | Laborer | New Jersey |
| 67 | Harry Schill | 51 | Head | Mason | New Jersey |
| 68 | Felicita Schill | 51 | Wife | — | New Jersey |
| 69 | Lillian Schill | 20 | Daughter | Dress Designer | New Jersey |
| 70 | Joseph R. Schmidt | 48 | Head | Driver | New Jersey |
| 71 | Marie Schmidt | 45 | Wife | — | New Jersey |
| 72 | Marie Schmidt | 21 | Daughter | Make Metal Containers | New Jersey |
| 73 | Josephine Schmidt | 15 | Daughter | — | New Jersey |
| 74 | Ursula Maggio | 80 | Head | — | Italy |
| 75 | Lawrence Maggio | 48 | Son | Proprietor | New Jersey |
| 76 | Olga Maggio | 42 | Daughter | — | New Jersey |
| 77 | John P. Keller | 67 | Head | — | Germany |
| 78 | Philomena Pfefferle | 39 | Cousin | Housework | Germany |
| 79 | Michael Vecchiello | 29 | Head | Mason | New Jersey |
| 80 | Mary Vecchiello | 26 | Wife | — | Pennsylvania |
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)