MF
Mary Frederick — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Passaic, New Jersey
Our Model Tree links this Mary Frederick across the 1900, 1910 and 1920 US Censuses in Passaic, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1860), then head of a 4-person household.
Age 60
b. ~1860
Female
Head
Born: New York
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Passaic, New Jersey |
| Surname | Frederick |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Paterson City |
| Est. Birth Year | ~1860 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Frederick | Son | — | 28 | ~1892 |
| Francis Frederick | Other | — | 21 | ~1899 |
| Mary Frederick | Head | — | 60 | ~1860 |
| Ruth Frederick | Daughter | — | 26 | ~1894 |
Census Appearances
1900
Passaic, New …
Head, age 41
Passaic, New Jersey · implied b. ~1859 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fredericks |
| Given Name | Mary E |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Widowed |
| Birthplace | New York |
| Birth Month | Jan |
| Birth Year | 1859 |
| Father's Birthplace | New York |
| Mother's Birthplace | New Jersey |
| Occupation | Landlord |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1910
Passaic, New …
Head, age 51
Passaic, New Jersey · implied b. ~1859 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fredericks |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | New York |
| Children Born | 4 |
| Children Living | 2 |
| Father's Birthplace | New York |
| Mother's Birthplace | New Jersey |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1920
Passaic, New …
Head, age 60
Passaic, New Jersey · implied b. ~1860 — 4 household members
| Surname | Frederick |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New Jersey |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| 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 Mary Frederick across 3 US Census years (1900, 1910 and 1920) in Passaic, New Jersey, using XGBoost record linkage.
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This person
Anchor record
Mary Frederick
Head · 1920 · age 60 · b. ~1860 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Passaic, New Jersey
Open full size
1920 US Federal Census — Passaic, New Jersey
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1064unit:0807)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Demen | 28 | — | — | New Jersey |
| 52 | Ellen Pollard | 56 | Head | — | England |
| 53 | Dorothy Pollard | 22 | Daughter | Weaver | England |
| 54 | Grace Pollard | 18 | Daughter | Stenographer | England |
| 55 | Martin E. Jennison | 29 | Head | Machinist | New Jersey |
| 56 | Annie Jennison | 25 | Wife | — | New Jersey |
| 57 | Elizabeth Jennison | 6 | Daughter | — | New Jersey |
| 58 | John Jennison | 4 | Son | — | New Jersey |
| 59 | Paul Jennison | 17 | Brother | Messenger | New Jersey |
| 60 | Henry J. Bruner | 63 | Head | Carpenter | Bavaria |
| 61 | Louisa Bruner | 52 | Wife | — | Baden |
| 62 | Thomas Dougherty | 80 | Head | — | New Jersey |
| 63 | Mary Dougherty | 72 | Wife | — | New York |
| 64 | Sarah Dougherty | 42 | Daughter | Operator | New Jersey |
| 65 | Emil Lutz | 49 | Head | Butcher | Baden |
| 66 | Rosina Lutz | 50 | Wife | — | Switzerland |
| 67 | Annie M. Lutz | 22 | Daughter | Weaver | New Jersey |
| 68 | Joseph Lutz | 16 | Son | Weaver | New Jersey |
| 69 | Hilda Lutz | 11 | Daughter | — | New Jersey |
| 70 | Emil Lutz | 27 | Son | Machinist | Switzerland |
| 71 | Elinor T. Lutz | 25 | Daughter-in-law | — | New Jersey |
| 72 | Ernest Lutz | 24 | Head | Bookkeeper | Baden |
| 73 | Lillian M. Lutz | 26 | Wife | Winder | New Jersey |
| 74 | Lillian M. Lutz | 4 | Daughter | — | New Jersey |
| 75 | James W. Copelton | 53 | Head | Weaver | England |
| 76 | Emily J. Copelton | 38 | Wife | Weaver | New Jersey |
| 77 | William O. Copelton | 22 | Son | Weaver | New Jersey |
| 78 | Robert M. Copelton | 17 | Son | Lecturer | New Jersey |
| 79 | Emily J. Copelton | 12 | Daughter | — | New Jersey |
| 80 | Thomas A. La Rue | 55 | Head | Painter | New Jersey |
| 81 | Julia L. La Rue | 58 | Wife | — | New Jersey |
| 82 | Russell R. La Rue | 22 | Son | Machinist | New Jersey |
| 83 | Raymond La Rue | 19 | Son | Designer | New Jersey |
| 84 | Charles H. Mochin | 63 | Head | Builder | New Jersey |
| 85 | Mary E. Mochin | 57 | Wife | — | Germany |
| 86 | William Jr. Holiz | 24 | Stepson | Weaver | New Jersey |
| 87 | Isabella Holiz | 22 | Daughter-in-law | Weaver | New Jersey |
| 88 | Marie Holiz | 3 | Granddaughter | — | New Jersey |
| 89 | Frank Reed | 50 | Head | Weaver | New Jersey |
| 90 | Mary E. Frederick THIS PERSON | 60 | Head | — | New York |
| 91 | John A. Frederick | 28 | Son | Machinist | New Jersey |
| 92 | Ruth Frederick | 26 | Daughter | Clerk | New Jersey |
| 93 | Francis S. Frederick | 21 | Daughter-in-law | — | Scotland |
| 94 | Annie Garley | 55 | Head | — | New Jersey |
| 95 | Alfred Birkholtz | 48 | Head | Conductor | Norway |
| 96 | Isabella Birkholtz | 43 | Wife | — | Scotland |
| 97 | Annabella Birkholtz | 12 | Daughter | — | New Jersey |
| 98 | Aaron R. Crall | 58 | Head | Foreman | New Jersey |
| 99 | Mary E. Crall | 54 | Wife | — | New Jersey |
| 100 | Katherine D. Crall | 21 | Daughter | Winder | New Jersey |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)